| Subject | Date Asked |
| Vinegar and water | 2/8/2012 |
| Q: My husband and I have a bet - can pathogens - viruses, bacteria, amoebas etc. live in water that has ... A: Vinegar is acetic acid and a virus particle and protozoans like amoebas would not survive.(Actually ... | |
| cytology | 2/1/2012 |
| Q: how are you? i want the short answer of these questions; 1)organization of life at celluluar level? ... A: I think that the answer you are looking for involves the biochemistry of cells as well as the ... | |
| skin color | 1/24/2012 |
| Q: Was i just curious to know; I'm brown skinned(shade darker than paperbag brown) and the father is ... A: All pigmentation depends upon a concentration of melanin. The amount depends upon your genetic ... | |
| biology | 1/22/2012 |
| Q: its for my biology coursework A: To find surface area lets use the formula for a cube Surface area = side squared X 6 (In a cube ... | |
| biology best | 1/8/2012 |
| Q: .for your information,I'm very superb in biology in my class..i has a problem..i want to ask you a ... A: Since you do well in biology I would think that would be your career goal. Be sure you take all ... | |
| science fair project | 12/26/2011 |
| Q: My child's science fair project is coming up and he is interested in experimenting with household ... A: I should clarify step 3. My typing is bad . Wipe the counters with the treated wipes and then swab ... | |
| science fair project | 12/26/2011 |
| Q: My child's science fair project is coming up and he is interested in experimenting with household ... A: Comparing antibacterial cleaners involves growing bacteria and I am not a fan of a 3rd grader doing ... | |
| Physiology | 12/13/2011 |
| Q: What is a good website that I can go to in order to find answers to questions like. What dramatic ... A: There is no single website that will give you this information. You can probably spend hours ... | |
| Biology Question? | 12/11/2011 |
| Q: How are you? I am sorry to bother you, but I have a quick question, and I hope you can answer it. ... A: I see no reason not to use these sites but personally I do not believe the internet is the best way ... | |
| Biology | 12/10/2011 |
| Q: Explain how the structure of the digestive tract in different invertebrate groups affects the size ... A: This is a strange question Mac. The structure of the digestive tract does not affect the size of the ... | |
| unknown microbe | 12/7/2011 |
| Q: I have found my unknown is gram + endospore former, rod. I am sure it is bacillus but I can't really ... A: B. cereus colonies are dull and more widespread then B. subtilis.B. cereus also occurs in chains. It ... | |
| Routine Blood tests | 12/3/2011 |
| Q: I went for a flu shot back in September 2011. My PCP took routine blood tests but I did not hear ... A: It seems to me that there is no serious health problem here but I have not seen the results of the ... | |
| nerve impulses and myelin sheath | 12/3/2011 |
| Q: why doesn't the nerve impulse go backward? why doesn't the invertible animals have myelin sheath? A: I am not sure what you mean by backward. Nerves go to and from the central nervous system;sensory ... | |
| Biology Questions? | 12/1/2011 |
| Q: How are you? I have a quick question. I am trying to find some helpful websites that will assist me ... A: I see no need to research this topic further on the internet. The ideas of hypothesis and theories ... | |
| cells | 11/28/2011 |
| Q: Explain how cell division is linked to cell theory? If you have time, what time of the day or night ... A: All living things are made up of cells. This is the basic statement about cell theory but we also ... | |
| Aneurysms | 11/21/2011 |
| Q: I'm sorry to have to dump this question on you, but on this site anyway the MDs seem as if there are ... A: I believe that it is true that they are more common in women but I am not sure about the heredity ... | |
| Sense of taste | 11/17/2011 |
| Q: My uncle had an operation when he was younger which left him without the sense of taste. I know in ... A: There is a difference between taste and flavor. There are sweet,sour,bitter and salty taste buds in ... | |
| Apples | 11/17/2011 |
| Q: why do apples turn brown after you slice them. i need soem info on this for my science fair research ... A: The apples contain an enzyme called PPO. When the apple is cut the tissue is exposed to Oxygen abn ... | |
| Help! | 11/7/2011 |
| Q: Why do zoos help with the perservation of a animal?? A: In my opinion allows people who would not otherwise see an animal closeup interact with them and ... | |
| What changes might enable IR vision in humans? | 11/7/2011 |
| Q: Mr. Hintz. I'm writing a story involving a character who can only see in the infrared area of the ... A: The human eye has sensory receptors in the retina attuned to wave lengths within a limited range. ... | |
| Human Being Hair Color due to Aging. | 11/5/2011 |
| Q: http://en.wikipedia.org/wiki/Human_hair_color We observe that with age, Some Human Beings Hair ... A: Pigmentation in mammals is due to melanin. Different concentrations of melanin cause darker and ... | |
| Meat | 11/5/2011 |
| Q: Iam curious, i have heard that vegetarians are healthier than meat eaters, but the meat eaters don't ... A: You probably heard that vegetarians are healthier from vegetarians. It is true they are less likely ... | |
| eye color inheritance | 10/11/2011 |
| Q: I have hazel eyes. Largely green (kind of an aqua) with a golden orange center. Both of my ... A: It is quite likely that you are carrying genes for both light and dark pigmentation. Remember I told ... | |
| eye color inheritance | 10/8/2011 |
| Q: I have hazel eyes. Largely green (kind of an aqua) with a golden orange center. Both of my ... A: Hair, skin and eye colors all depend upon the amount of melanin and the production of melanin is ... | |
| heavy metals | 10/6/2011 |
| Q: Mr. Hintz, I hope this s not too odd a question or outside your experience, but I'll throw it at ... A: The main metals we ingest are iron and zinc. We get them into our system from many foods both ... | |
| Small worms in my sink | 10/5/2011 |
| Q: I just moved to my new place, and i have notice this little like flies in my bathroom. They re ... A: These sound like drain flies. Tje worms are the larvae. They breed in in the sink and bath drains. ... | |
| Human Species Name | 9/30/2011 |
| Q: Walter... My name is Al Cagle, and I am an expert on military history on this board. Recently I ... A: 1. The only thing we know for sure is that evolution is a continuous process so some changes will ... | |
| Human Species Name | 9/29/2011 |
| Q: Walter... My name is Al Cagle, and I am an expert on military history on this board. Recently I ... A: The second sapiens is used because we considered a sub species of Homo sapiens.The other sub species ... | |
| 7 year body cycle | 9/26/2011 |
| Q: Is there any scientific truth to the theory that the human body changes every 7 years? If so, what ... A: There is no scientific evidence that this is factual because cells are replaced over time (except ... | |
| Metamorphosis | 9/20/2011 |
| Q: I'm writing my final biology examination tomorrow and can't find any notes on the advantages or ... A: I really do not know how to respond to advantage/disadvantage questions Bradley. They make no sense ... | |
| introduction to biology | 9/19/2011 |
| Q: please can you just explain the following topics in 2 to 3 lines tomorrow is my test so i will be ... A: 1. The science of biology can be categorized based upon contend. 2. Living things are controlled by ... | |
| Hope you can help | 9/17/2011 |
| Q: I cant find anyone who can advise hope you can My question is how long do germs in feces live? I ... A: Intestinal bacteria cannot live long after leaving the body and the bacteria in dog feces are ... | |
| AP Biology course | 9/6/2011 |
| Q: My name is Natalia and I am taking an AP Biology course For my class i have to interview a biologist ... A: In 1961 I was at the university of California at Berkeley. I was involved in the study of ... | |
| AP Biology course | 9/6/2011 |
| Q: My name is Natalia and I am taking an AP Biology course For my class i have to interview a biologist ... A: Yes! I studied the populations of diatoms in Western lake Erie for two years The results were ... | |
| AP Biology course | 9/6/2011 |
| Q: My name is Natalia and I am taking an AP Biology course For my class i have to interview a biologist ... A: I was inspired by my high school biology teacher The Ohio State University and Kent State Univ 58 ... | |
| Water pathogens | 9/5/2011 |
| Q: First let me say thank you in advance. I am a chemistry major and my MIL has posed a question that ... A: I have never heard of this either. Personally I think the idea of protozoans occuring in bath toys ... | |
| Biology | 9/4/2011 |
| Q: Im a year9 student.My questions are that (1)For the same mass of fats and carnbohydrates,fats ... A: 1. The metabolism of fats takes much longer then that of a carbohydrate 2. The kidneys filter out ... | |
| Marine Biology | 9/3/2011 |
| Q: my name is Megan i'm a 5th grade student in pa, Are class is during a research project on what i ... A: This means you are 10 or 11 and a lot of years ahead of you if you want to be a marine biologist. ... | |
| Poison Ivy Treatment | 8/31/2011 |
| Q: I have had poison ivy for 5 days now, i have tried caladryl, calamine lotion, cool baths, cortizone, ... A: This is a medical problem and I am not an MD. I suggest you consult a Dermatologist. There are too ... | |
| Unusual eyelid arrangement | 8/28/2011 |
| Q: and thank you for being willing to answer questions. I hope that you are doing well, and I also hope ... A: First of all let me assure that hypothetical questions do not annoy me. I have been plagued recently ... | |
| Science Fair Advice | 8/27/2011 |
| Q: Can you please give ideas to "bump" up this project idea to a senior level project? It is for a ... A: The project you referred me to seems to me to be at a high school level. I would suggest that you ... | |
| Blood color | 8/21/2011 |
| Q: Can human blood be blue? Or it always stay red. A: Human blood is red despite stories that is blue until strikes the air. Blood drawn into a vacuum ... | |
| Genetics | 7/31/2011 |
| Q: How do genetics work in terms of influence on people? I assume that within each of us all of our ... A: Our heredity follows exact Laws as established by Gregor Mendel All of of our physical features ... | |
| existence of human pheromones | 7/21/2011 |
| Q: Do human pheromones exist? And how plausible is the idea of human females releasing a airborne ... A: I looked over the article. I do not pay to much attention to anything from wikipedia. Drawing from ... | |
| existence of human pheromones | 7/20/2011 |
| Q: Do human pheromones exist? And how plausible is the idea of human females releasing a airborne ... A: As far as I know the jury is still out on human pheromones. No one has been able to detect such ... | |
| Genetic engineering/eugenics | 7/20/2011 |
| Q: In Bruce Sterling's Schismatrix stories, he describes a wonderfully complex future society filled ... A: In other words you are asking if we can alter evolution, To alter or change sensory mechanisms would ... | |
| marine biology | 7/14/2011 |
| Q: Also what exactly does a marine biologist do would they be cutting up dead dolphins and operating or ... A: I am assuming that you are still a student so I cannot not predict the future with regards to work ... | |
| How our senses work. | 7/10/2011 |
| Q: Is the world we see around us the real world itself or merely an internal perceptual copy of that ... A: I am a biologist and not a philosopher but do like to ponder questions like this. I agree from a ... | |
| biology | 7/3/2011 |
| Q: suppose you wanted to know how to amount of fertilizer affects the growth of corn plants,prepare an ... A: Here is what I would do John. The problem might be How does the amount of fertilizer effect the ... | |
| effects of cigaretsmoke on houseplants | 5/31/2011 |
| Q: We doing a project on it We made 2 greenhouses en put 4 plants in each in the one we blow smoke the ... A: If you have to make a report for the teacher remember that. a hypothesis is not what happened but a ... | |
| Slater (woodlice) Investigation on Response to Light Stimuli | 5/30/2011 |
| Q: Slater Investigation on Response to Light Stimuli. Ok I am doing an experiment. Slaters(woodlice)are ... A: What is your hypothesis? The fact that they avoid light is a given so there is no sense in ... | |
| effects of cigaretsmoke on houseplants | 5/29/2011 |
| Q: We doing a project on it We made 2 greenhouses en put 4 plants in each in the one we blow smoke the ... A: . What grade level is this? Did you use proper controls. In other words were the plants the same ... | |
| more info needed | 5/25/2011 |
| Q: my project is comparative study on the effect of cigarette and firewood residue in soil on the ... A: First of all I think that you done a good job with this project Sheila. You will probably not find ... | |
| Biology | 5/19/2011 |
| Q: What happens to cells that are engulfed during endosymbiosis? Which type of algae branched off to ... A: You have the wrong idea about endosymbiosis. It does not involve engulfing cells. I refers to one ... | |
| lack of detail in food webs... | 5/18/2011 |
| Q: I'm currently working on a project in science about biosphere 2, i need to find a complete food web ... A: I goggled Coniferous forest food webs and found some sketches but i you want to more specific list ... | |
| Chlorophyll and haemoglobin | 5/13/2011 |
| Q: I'm from the UK and am wondering if the human body is able to convert chlorophyll into haemoglobin. ... A: You are quite correct in your information about the chemical makeup of these compounds. I think that ... | |
| Biomes Project | 5/10/2011 |
| Q: We are in students in Mr. Burkes life science class. We were assinged to do a project on biomes. We ... A: I wish I could help you boys, but I live in Ohio in a temperate forest biome. I am sorry that you ... | |
| Having One Child to Save Another's Life | 5/8/2011 |
| Q: I am a freshman at Temescal Canyon High School. It has been required that we get an expert interview ... A: 1. I agree with this procedure 2. Yes 3. I am not sure what you are asking here 4. It can save the ... | |
| Gene Therapy | 5/5/2011 |
| Q: I am a current high school student and is working on a bioethical term project. I'd really ... A: 1.It is the process of changing the DNA for the purpose of treatment of a medical condition 2.I am ... | |
| Stem Cell Research Report | 5/4/2011 |
| Q: Hey, I'm a freshman at Temescal Canyon High School. I have a bioethics report on stem cell ... A: 1. I support all research on stem cells 2. Stem cell research can lead to improvements in human ... | |
| Biology | 5/1/2011 |
| Q: I just finished a science experiment in which I put chicken bones in various liquids for a week. I ... A: It looks like the Bleach affected both the calcium compound and the protein. Citric acid and acetic ... | |
| Biology | 4/30/2011 |
| Q: I just finished a science experiment in which I put chicken bones in various liquids for a week. I ... A: Bone is made up of two main components: A hard calcium compound called hydroxtapetite an fibrous ... | |
| Bioethics- Gene Therapy | 4/29/2011 |
| Q: I am currently a high school student conducting a research project on the topic of gene therapy. I ... A: My guess is that it will be used to treat diseases in the next year or so. AS to the cost I am ... | |
| niche | 4/27/2011 |
| Q: i need to make a niche for my imaginary animal project. how do i do it?? A: The niche of an organism is its relationship to it's environment. It is usually expressed as its ... | |
| stuck | 4/26/2011 |
| Q: i know what its asking but i don't know what the answer is: define aerobic and anaerobic respiration A: Aerobic respiration is oxidative. It occurs in the presence of oxygen. Aerobic respiration occurs in ... | |
| genetic engineering | 4/23/2011 |
| Q: I have a couple questions to ask: 1. What are the differences between genetic engineering and ... A: 1. With genetic engineering the actual DNA is altered. Breeding involves artificial selection where ... | |
| Cryogeny and Cryonics | 4/19/2011 |
| Q: Please I will like to know the difference between cryonics and cryogenics. I understand that ... A: In Physics cryogenics is the study on loe temperature on objects Cryonics is the preservation of ... | |
| The Phylum Archaea: Extremophiles | 4/18/2011 |
| Q: I am doing a presentation on extremophiles in the phylum Archaea. Everywhere I look I seem to get ... A: Any organism that survives in an environment that would kill most other organisms is considered an ... | |
| height growth | 4/14/2011 |
| Q: sam:Im 19 and Im 173cm I want to become taller.is there any way ? can I increase it about 15cm ? ... A: How tall you are is determined by your heredity unless you have some problem with your growth ... | |
| Skin Pigments | 4/10/2011 |
| Q: I don't suppose you know if there is a way to convert primary colors into various skin ... A: All skin color comes from the deposition of a single pigment, melanin. The more melanin the darker ... | |
| Is this plausible? | 4/10/2011 |
| Q: I was watching an episode of CSI where a block of apartments were set on fire. One room which ... A: I enjoy watching the CSI shows from a science viewpoint and although much of it has a scientific ... | |
| Plant Lab Technique | 4/3/2011 |
| Q: can you give me a quick hand? I'm competing in the Canadian Biology Olympiad, and as one of the top ... A: There are two ways to prepare onion root tips to observe mitosis and nether one takes 15 minutes ... | |
| science fair project | 4/3/2011 |
| Q: ..I helped my daughter do her project on who has a cleaner mouth a dog or a human. I cannot figure ... A: Unless you can find out which types of bacteria are on the petri dishes you can only do a ... | |
| HCL - Digestion Question | 4/2/2011 |
| Q: If there is a lack of HCL in the stomach, how would that affect digestion? Thanks so much. A: HCl helps break dpwn large food particles into smaller one so that carbohydrates ,fats and proteins ... | |
| home schooled and dont understand | 3/19/2011 |
| Q: why is cellulose a tough material? A: This is a little bit hard to answer tori because "tough" is a relative term. It only makes sense ... | |
| Why do plants wilt? | 3/16/2011 |
| Q: A plant that is wilting is wilting because of deplasmolysis? or decreased turgor? A: Plants wilt due to water loss through osmosis. A loss of turgor pressure does occur during wilting. ... | |
| The Circulatory and Respiratory Systems | 3/12/2011 |
| Q: Q: How are the Circulatory and Respiratory Systems connected anatomically and how do they work ... A: The circulatory has three systems: The pulmonary circulation carrying blood to and from the lungs ... | |
| Photosynthesis | 3/8/2011 |
| Q: I was looking at some info on the constituents of sunlight. Apparently, 14 percent of sunlight is in ... A: You are asking me questions that can only be answered in the realm of evolutionary biology. Plants ... | |
| Oxygen production | 3/8/2011 |
| Q: Could you please tell me how much oxygen is produced by a tree? I want to also know how many trees ... A: The problem is that the photosynthetic rate depends upon the amount of light and CO2. WE have to ... | |
| Sponges and plants | 3/3/2011 |
| Q: How are sponges like plants and how are they different? A: I have been thinking about this question a lot and outside of the fact that both are living ... | |
| Science Fair | 2/23/2011 |
| Q: To Mr. Hintz My school is having a science fair in about five weeks, (deja vu). I have two ... A: Outside of putting a weak acid on a Nutrient agar plate I do not see how you can alter the pH. You ... | |
| Science Fair | 2/23/2011 |
| Q: To Mr. Hintz My school is having a science fair in about five weeks, (deja vu). I have two ... A: I remember the soap study Here is what I think Project # 1 Evolution comes about through ... | |
| science: invstigatory project (start) | 2/20/2011 |
| Q: it's my first time to encounter a science investigatory project. my teacher asked us to formulate ... A: First of all if you have to become acquainted with the scientific method. Follow these steps 1. ... | |
| botany expirement | 2/15/2011 |
| Q: my experiment is how does the amount of salinity affect plant height. it would be really great if ... A: Most of my experience has been as a teacher of science and I have taught at all levels from ... | |
| botany expirement | 2/13/2011 |
| Q: my experiment is how does the amount of salinity affect plant height. it would be really great if ... A: You have your question and now you have to follow the scientific method. Decide upon a hypothesis: ... | |
| Wrong Blood Group Donated to a patient | 2/13/2011 |
| Q: Example : Blood group required by a patient because of injuries is A Rh+ ve. Suppose by mistake, ... A: It would depend upon how much blood was transfused but the certainly be a reaction. The B protein ... | |
| Biology assignment | 2/12/2011 |
| Q: how do I begin the process to propose a testable hypothesis to Salt in soil may affect plant growth? ... A: Ok Deb Decide on about three concentrations of salt water. Maybe 1% 5% and 10% Use four pots and ... | |
| Biology assignment | 2/12/2011 |
| Q: how do I begin the process to propose a testable hypothesis to Salt in soil may affect plant growth? A: The first thing you have to do is state your problem or question In this case "Will salt in the ... | |
| Marijuanna | 2/10/2011 |
| Q: Before you claim this as "outside of your expertise" I want you to know that I would still love to ... A: You asked for my opinion and my opinion is that smoking anything is a bad idea. Drawing smoke into ... | |
| natural citric acid's effect on the spider plant | 2/10/2011 |
| Q: My nine-year-old daughter is doing a science project on the effect of natural citric acid's (ie: ... A: I think that is what her project is trying to find out and it sounds like a good one for a nine year ... | |
| Marijuanna | 2/10/2011 |
| Q: Before you claim this as "outside of your expertise" I want you to know that I would still love to ... A: No! I don't think you will be fine. I think you are playing with fire. The effects on your heart is ... | |
| blood | 2/9/2011 |
| Q: I need proof from an expert for my 7 yo grandson. He believes that blood is blue until it escapes ... A: People have blood drawn every dsy and it i sdrawn into a vacuum tube. Vacuum tubes have no air and ... | |
| Marijuanna | 2/9/2011 |
| Q: Before you claim this as "outside of your expertise" I want you to know that I would still love to ... A: Well Josh, you have done it so you are aware what the physical effects are. It effects your heart ... | |
| Blood Transfusion in Aquariam Fishes | 2/8/2011 |
| Q: How we can perform Blood Transfusion in Aquariam Fishes ? do we have to give local anaesthetia to ... A: The fish has a 2 chambered heart so there is no separation of venous or arterial blood but ... | |
| blood group and type information required | 2/7/2011 |
| Q: sub : blood group and type information required meDicine branch : pathology we have different ... A: The A and B blood proteins are not affected by environmental conditions although they do vary within ... | |
| blood group and type information required | 2/6/2011 |
| Q: sub : blood group and type information required meDicine branch : pathology we have different ... A: Question 1. Among the proteins in the blood there are two with a special significance. They are used ... | |
| Mosquito | 2/2/2011 |
| Q: My question is this that how plasmodium enters into the body of mosquito?please answer as soon as ... A: The mosquito ingests reproductive cells (Gametocytes) from the blood of an infected person. The ... | |
| genetics | 2/2/2011 |
| Q: How would the karyotypes of people with down syndrome, turners syndrome, and klinefelter's syndrome ... A: The most common form of Downs is Trisomy 21. The Karyotype shows three chromosomes at the 21st ... | |
| Bones | 1/31/2011 |
| Q: 1]Is posible for bones to be regenerated? 2]How about muscles? 3]If so how much money can a person ... A: Bones are continually being broken down and regenerated but muscle cells do not undergo cell ... | |
| clean mouths | 1/31/2011 |
| Q: i am doing a science fair project on hows mouths are cleaner dogs or humans. would i have to send it ... A: You must do a science fair project on your own. I am not sure you understand the scientific method. ... | |
| Biology | 1/27/2011 |
| Q: I am doing a extra credit project for my biology teacher I have to make up ten questons and ask ... A: 1. I cannot answer this because this cannot be measured 2. It depends upon the type of a cell. Nerve ... | |
| common cold mutation | 1/27/2011 |
| Q: I've only just today decided to do some research on the common cold and it's related virus strains ... A: I am afraid that virology is outside my expertise. The problem with virus particles is that they ... | |
| question | 1/15/2011 |
| Q: im doing a science fair project on how cigeratte smoke effects plant growth.im using corn and butter ... A: Before I can help you you will have to tell me more about this project. How do you plant to use the ... | |
| Diagnosis | 1/11/2011 |
| Q: My mother was recently playing volleyball with my grandchildren on the beach. She ended up landing ... A: This is a medical problem and I am not an MD. I would be breaking the law if I were to diagnose a ... | |
| bacteria | 1/9/2011 |
| Q: i am doing a science fair project and i need some advice. my experiment is which grows more ... A: Let me know when you design your experiment I believe form past experience that there will some ... | |
| biology project | 1/9/2011 |
| Q: SIR,FINALLY I HAVE DECIDED AN INVESTIGATORY PROJECT FOR BIOLOGY RELATED TO AIR POLLUTION.BUT I AM ... A: Air pollution is a huge problem today. I do not understand why you cannot find out more about it. I ... | |
| bacteria | 1/7/2011 |
| Q: i am doing a science fair project and i need some advice. my experiment is which grows more ... A: In order I need to know some things. Do you have the necessary resources needed to grow bacteria. ... | |
| bacteria | 1/5/2011 |
| Q: sir , I have read that bacteria's are poisoned to elemental oxygen . If is it true than why is it so ... A: There are species of bacteria that are classified as anaerobes to which oxygen is toxic. the Tetanus ... | |
| biowaste - human waste | 1/2/2011 |
| Q: I wasn't sure where to classify my question. It is more of a sanitation question and I couldn't ... A: You have a real dilemma here and I am not qualified here to help you much. I can only tell you what ... | |
| biowaste - human waste | 1/1/2011 |
| Q: I wasn't sure where to classify my question. It is more of a sanitation question and I couldn't ... A: I am afraid that you do not need me to tell you that this is a health hazard. Unfortunately you need ... | |
| Question | 12/25/2010 |
| Q: I was wondering, which cells line the hair follicle walls (the inner ones)in human skin? ANSWER: ... A: I am not sure how to answer the question as to what causes that development of epithelial cells ... | |
| germs | 12/22/2010 |
| Q: My friend went to the bathroom (defecated) and then did not realize that he forgot to wash his hands ... A: There are couple of reasons for hand washing. On is that a small percentage of the germs are ... | |
| germs | 12/22/2010 |
| Q: My friend went to the bathroom (defecated) and then did not realize that he forgot to wash his hands ... A: Being deathly afraid of germs is a serious affliction that requires special therapies so I doubt if ... | |
| Thermodynamics | 12/13/2010 |
| Q: Ok, here's a stupidIf the body temperature of the average person is 98.6 degrees, and the 2nd Law of ... A: The negative feedback mechanisms, vasoconstriction, shivering and tightening of the skin, generate ... | |
| Biology- Circulation | 12/8/2010 |
| Q: The question is as follows: Explain why blood pressure would have increased right after his exercise ... A: The energy required for muscle activity is gained through a fermentation process when pyruvate is ... | |
| heart | 11/29/2010 |
| Q: what is pulmonary circulation of heart A: There are three circulations form the heart 1. The systemic circulation where blood is transmitted ... | |
| Fishing | 11/28/2010 |
| Q: What do you think about this: Ocean ecosystems are on the verge of collapse. The best way to save ... A: That tactic might be valuable if the decline in fish were the only problem but it is not. In would ... | |
| genes | 11/27/2010 |
| Q: can you help me about genetic coding? the instruction is to obtain 5 paper clips of different ... A: The first thing I would do is make a single strand of DNA of about twelve nucleotides maybe like ... | |
| phloem cells | 11/14/2010 |
| Q: i just want to ask "what are phloem cells?" there are lots of answers but i want to know the ... A: Plants have to have tissues to carry fluids just as animals do. Animals have arteries and veins and ... | |
| Light Reactions and the Calvin Cycle | 11/10/2010 |
| Q: I am having trouble understanding the light dependent reactions and also the Calvin Cycle. A: During the light dependent reactios photons are captured ane the energy store in ATP During the ... | |
| Cell Division | 11/9/2010 |
| Q: How does the chromosomes remain arranged on metaphase plate when the nucleur membrane has already ... A: Ho Manindra The stages of mitosis are arbitrary and artificial. To have stages you must infer that ... | |
| Biology | 11/5/2010 |
| Q: I am a college student at a health science school. This semester we were assigned to come up with a ... A: I think that a project in microbiology is a good one. I have worked as a bacteriologist and have ... | |
| Paul the Octopus | 11/4/2010 |
| Q: How did the late Paul the Octopus predicted perfectly world cup? What does science say about him? If ... A: How did he do it? He didn't. Somebody arbitrarily interpreted his activity as a prediction and used ... | |
| biology | 10/31/2010 |
| Q: i wanted to know what natural phenomenon causes diffusion A: Diffusion is the movement of molecules from an area of higher concentration to an area of lower ... | |
| Human Heredity | 10/31/2010 |
| Q: Suppose individuals within a breeding population are diploid with A and a alleles located on a pair ... A: Here is how to determine the gametes from this cross and how set up a punnett square Assume AaBb is ... | |
| Sexual Selection | 10/30/2010 |
| Q: I should've asked this question in the "evolution" section but currently that section has no ... A: First of all sexual selection is a form of natural selection. I do not see the authors point here. ... | |
| bacteria | 10/28/2010 |
| Q: In school i am growing bacteria, i wanted to know if i touched the bacteria with my hand and then ... A: It all depends upon what kind of bacteria you grow. Most bacteria are not harmful but you have ... | |
| how long do germs live in mouse droppings? | 10/24/2010 |
| Q: We have had a mouse infestation in our house.We were seeing them run by every night, and hearing ... A: Virus particles are not alive and require living cells to reproduce. Mouse droppings may contain ... | |
| Mouse Germs | 10/21/2010 |
| Q: How long do mounse dropping's Germs live? How long are they harmful to you? A: Some bacteria can form spores and stay in a dropping for an extended period but these are not ... | |
| human birth | 10/19/2010 |
| Q: my question is that science has proved that living things cannot be created by dead things. Then why ... A: Discoveries in science depend upon observable and testable facts. Unless this can be done then no ... | |
| Anatomy of the heart | 10/18/2010 |
| Q: I have been trying to find a diagram for the dorsal view of a heart and have only found pictures of ... A: This is a good example where a library is better then the internet. Find an anatomy textbook Of ... | |
| human birth | 10/17/2010 |
| Q: my question is that science has proved that living things cannot be created by dead things. Then why ... A: First of all Darwin never said that human beings come from dead things. All life comes from life. At ... | |
| question | 10/9/2010 |
| Q: why the cells of big and small animals are histologically similar? what restricts the size of the ... A: There is a math principle called the scale effect that states when you increase the size of cell you ... | |
| Tundra Bime | 10/7/2010 |
| Q: I am a 6th grade teacher in WI. My students are doing a project on various Biomes, and part of their ... A: 1. Animals in all biomes are all connected in their quest for energy.They depend on each other for ... | |
| Confused Tom Turkey | 9/29/2010 |
| Q: That was an intriguing answer the other day about the turkeys that were crowding around me at the ... A: When I was in the Army Medical corp I lived with my family in a house in Maryland Where owner had a ... | |
| will dog saliva kill bacteria | 9/25/2010 |
| Q: I'm helping my son with this project. How should we set up the nutrient agar petri dishes? Apply ... A: You should inoculate the plate with the bacteria first and then add the saliva. What you are looking ... | |
| will dog saliva kill bacteria | 9/25/2010 |
| Q: I'm helping my son with this project. How should we set up the nutrient agar petri dishes? Apply ... A: Inoculate the entire plate with the bacteria and apply saliva to half the plate. If you wish you can ... | |
| Bio Project | 9/7/2010 |
| Q: I'm studying in twelfth grade.. we are supposed to do investigatory bio projects. My friend and I ... A: These are all difficult but the last three require extensive medical knowledge and you would require ... | |
| Simple question | 8/29/2010 |
| Q: first, I would like to say thank you for taking the time to answer my question. Now for the whole ... A: A hypothesis is an educated guess as to the answer to a question. An educated guess implies some ... | |
| Query re fish | 8/27/2010 |
| Q: I read somewhere that great whites have to live in cold, temperate waters in order to be able to ... A: I have snorkeled in both warm and cold water and I do not see more fish in cold water and I do not ... | |
| Why sweat during sex? | 8/26/2010 |
| Q: I have been told that people sweat while having sex. Why is that? Is it because of vigorous body ... A: It is due to increased activity and the rise in body temperature and the temperature of the room.. ... | |
| external and internal | 8/15/2010 |
| Q: I am a year 11 student currently doing my latest biology assessment which involves having to list ... A: There are more differences then similarities but the most obvious similarity is that in both cases ... | |
| Ear Lobes | 7/30/2010 |
| Q: Our baby has unattached ear lobes and both myself and my husband have attached - there is certainly ... A: No Problem here Allison. Unattached earlobes are recessive so you and your husband each have one ... | |
| What will my children's eye- and hair color be? | 7/26/2010 |
| Q: I've looked through some other answers to this question, but I haven't yet found anything that can ... A: It appears that your mother is carrying recessive genes which means that there is a 50/50 chance ... | |
| Goose Stance | 7/23/2010 |
| Q: Hintz! Here is another question from my observation of the goose flock. They were feeding in a ... A: Sorry Ken, but I would have to spend more time observing this behavior before coming to any ... | |
| bone fracture. | 7/22/2010 |
| Q: I am writing a story in which someone throws a character against the wall hard enough to break the ... A: You will have to decide what type of a fracture it is and what bone is broken. Let's pretend hat it ... | |
| science | 7/19/2010 |
| Q: how can i make an investigatory project A: The first thing you must do is is decide upon a question you want answered or a problem you want to ... | |
| decomposition of human bodies at sea | 7/18/2010 |
| Q: How does decomposition of human bodies at sea progress? I am writing a mystery book, and some of my ... A: Decomposition occurs through bacterial action the same as it would on land. Sea animals also bring ... | |
| perkinji fibre in heart | 7/9/2010 |
| Q: Why the speed of cardiac impulse in perkinjee fibre is maximum about all the nodes in heart? A: I am not sure what you know about purkinje fibers and the question eludes me. Let me tell the ... | |
| biology | 6/30/2010 |
| Q: im a 7th grade girl n i have project. i have to grow plants with detergents like prill detol n ... A: Here is what you should do now. Get new plants that are all the same size or start with seeds (use ... | |
| Question about the 1st step of scientific method | 6/25/2010 |
| Q: With the use of Scientific Method, I came up to the experiment called "Testing Food for bacteria". I ... A: The problem is always a question. It is what you are trying to answer. In this case the problem is ... | |
| milk | 6/5/2010 |
| Q: Today I left my house around 9:00 AM, and I returned around 6:30. The problem is that I accidentally ... A: Milk is soured by a bacteria called Lactobacillus. You ingest these even if it is not soured and ... | |
| fruit waste processing | 5/25/2010 |
| Q: I would appreciate some info on the following. I am researching in waste fruit disposal systems and ... A: You cannot stop the degradation of fruits and fruit juices. Bacteria and yeasts will bring about a ... | |
| fruit waste processing | 5/25/2010 |
| Q: I would appreciate some info on the following. I am researching in waste fruit disposal systems and ... A: In the presence of oxygen some of the glucose will break down into pyruvic acid. When you store the ... | |
| Toxoplasma gondii parasite | 5/14/2010 |
| Q: Hints have question about the assay i am ... A: This parasite can enter the immature erythrocytes but not the mature RBCs. This because there is a ... | |
| Science of all topics | 5/13/2010 |
| Q: These are practice questions from a random website to prep to take the pre-test, then if passed, ... A: I am not sure what the question is here.Are you expected to explain why these answers are what they ... | |
| Parasite school project | 5/13/2010 |
| Q: 1) How have parasites had an impact on our history and how was our history been altered? How did ... A: 1. There are a lot of parasites but the most important historically was the one which caused the ... | |
| ................................. | 5/9/2010 |
| Q: plz describe the steps involved in biological method taking malaria as an example. ANSWER: Are you ... A: Lets suppose you have decided to test a certain drug for treating malaria. The first step in the ... | |
| Coral | 5/5/2010 |
| Q: I am putting together an article on Coral Reefs and how they are becoming extinct. I was wondering ... A: Your question could not have come at a better time in light of the recent explosion in the gulf of ... | |
| Biology | 5/4/2010 |
| Q: 1.what are two advantages of fungi which involve spores? 2.Green algae can't survive in deep water; ... A: 1.They are saprophytes and recycle organic material They have economic value as food 2.The green ... | |
| hi | 4/22/2010 |
| Q: what is the disadvantage of doing sex?? A: This is a strange question. I suppose it depends upon who you are having sex with. You could get a ... | |
| Marine Biology research project question | 4/21/2010 |
| Q: Hintz, I am a senior in high school doing an i-search (a research paper) for my english class. My ... A: This is quite easy for me because I am opposed to capturing killer whales and sea lions to train ... | |
| Aggression? | 4/18/2010 |
| Q: For my 8th grade science project my topic is aggression in Betta fish. I'll be showing the Betta's ... A: I thing your experimental design is very good. I understand that at one point you are planning to ... | |
| Cold Water vs. Warm Water | 4/15/2010 |
| Q: Mr. Hintz, Cold water contains more oxygen than warm water. However, warm water contains more life. ... A: Of course the areas closest to the sun are warmer. But The amount of dissolved O2 has to do with ... | |
| Punnett sqaures | 4/15/2010 |
| Q: How would i find the Genotype and Phenotype in a Punnett Square, "If a homozygous black cat crosses ... A: THe phenotype is what you can see (black or orange) The genotype is what genes are present ... | |
| Data Charts | 4/14/2010 |
| Q: I have a biology project in which i have to find a track of an animal and try to identify it. I also ... A: First go to this site to find out what to look for www.bear-tracker.com/mammals.html You will find ... | |
| biochemistry | 4/14/2010 |
| Q: Is biochemistry more like a chemistry class or more like a biology class. Is it something you just ... A: There are a lot of ways to study biology. Biochemistry involves the joining of physiology of living ... | |
| The importance of feedback mechanisms in biology | 4/14/2010 |
| Q: I have to write an essay about the topic above, i was just wondering if you could give me any tips ... A: Feedback mechanisms aid in keeping the status quo in a system. They are necessary for life. The ... | |
| Genetics of biracial marrying the same | 4/14/2010 |
| Q: I have medium hair and green eyes my DH has dark brown hair and hazel eyes. My mother: blue eyes ... A: Keep in mind that eye, skin and hair color is determined by multiple genes and not a single pair per ... | |
| bio i need help with this question please. . . | 4/13/2010 |
| Q: in guinea pigs, the allele for rough coat (R) is dominant to the allele for smooth coat (r), and the ... A: My policy when I get genetics problems like this to to set up the punnett square and partially ... | |
| Deer Decaying Process | 4/13/2010 |
| Q: I am writing a fictional children's story that heavily incorporates nature. The kids are on a field ... A: The decay of a dead animal starts as soon as the cells die. Bacteria and insects bring about the ... | |
| Would you like to join this debate? | 4/1/2010 |
| Q: Mr. Hintz, Hi! I have challenged the Creation Museum to an evolution vs. creation debate. They have ... A: Somebody once told me that if you are arguing with someone who you think is nuts you are wasting ... | |
| Biology question. | 3/30/2010 |
| Q: what is the sequence of events in the production of e new protein molecule? A: This a complicated process so I will have to assume you know something about the genetic code. If ... | |
| lifespan of sperm | 3/27/2010 |
| Q: Sir, Is the lifespan of sperm 72 hours. If so then where does the excess sperm go for a individual ... A: Actually in the female oviducts sperms can live 5 days. In the vagina they life span is 3-4 hours ... | |
| Evolutionary Mysteries | 3/26/2010 |
| Q: Mr. Hintz, I like to ponder scientific mysteries and try to come up with solutions. Though, I never ... A: There are a lot of mysteries to me especially involving animal behavior. To my it just seems so ... | |
| earth has biological growth | 3/26/2010 |
| Q: now i seen that i can attached docs by this mail also. pls see attached docs. ... A: The tree is made up of living cells. By living we mean that these cells have movement,growth, a ... | |
| Bacteria | 3/26/2010 |
| Q: Good afternoon. I am doing a study on telephone headsets and whether or not potentially harmful ... A: Harmful bacteria from secretions are more likely then from skin bacteria although staph is often ... | |
| Attracting mates | 3/25/2010 |
| Q: Mr. Hintz, Hi! I know I'm going off topic, again, but I had a quick question about animals choosing ... A: Besides a physiological an organism can suffer a genetic death if they do not pass on their DNA. The ... | |
| Bacteria | 3/25/2010 |
| Q: Good afternoon. I am doing a study on telephone headsets and whether or not potentially harmful ... A: I am sure that there are many bacteria found on anything that goes over someone's ears. They are ... | |
| earth has biological growth | 3/25/2010 |
| Q: now i seen that i can attached docs by this mail also. pls see attached docs. ... A: There is no way for you to prove this theory. You may give some reasons why you believe this but we ... | |
| convert pig biomass to bear biomass | 3/23/2010 |
| Q: I'm trying to find out what the conversion ratio might be if, hypothetically, I wanted to grow bears ... A: OK I know what you are thinking about. Let me remind you about the second Law or the Law of entropy ... | |
| Evolution | 3/23/2010 |
| Q: my name is martin and I am a grade 9 student attending Springbank High school. I'm working on an LA ... A: This is a huge topic and will require you to tell me what you already now and whatever theories you ... | |
| Oxygen transport | 3/22/2010 |
| Q: I'm studying for a test and I need to know how oxygen gets to the aorta when inhaled through the ... A: O2 passes into the blood stream in the alveoli of the lungs it then passes through the pulmonary ... | |
| Cope's rule | 3/22/2010 |
| Q: Mr. Hintz, I know you were talking about Bergmann's rule the last time we talked but right now I ... A: The trouble with biological "rules" is that they are generalizations with exceptions. The elephant ... | |
| biology science fair project help | 3/21/2010 |
| Q: To Mr. Hintz: Expert My school is having a science fair in 5 weeks. For my project I want to, ... A: In the scientific method the question is the problem. If other words the Problem you are testing is ... | |
| biology science fair project help | 3/21/2010 |
| Q: To Mr. Hintz: Expert My school is having a science fair in 5 weeks. For my project I want to, ... A: You are certainly in a pickle here as a scientific minded individual in an unscientific school. Let ... | |
| Young to old and back again | 3/19/2010 |
| Q: Mr. Hintz, It is interesting to me that the animal Hydrozoa can go from young to mature at will. ... A: Interesting! I have heard about the immortal jellyfish often stated as the world's only immortal ... | |
| biology science fair project help | 3/19/2010 |
| Q: To Mr. Hintz: Expert My school is having a science fair in 5 weeks. For my project I want to, ... A: First of all I will tell you that you cannot just develop a new species of strain of bacteria. New ... | |
| Cloning | 3/19/2010 |
| Q: I'm doing some coursework on cloning. I would really appreciate it if you give me some background ... A: There is just so much information about cloning today that you will have to be more specific as to ... | |
| Young to old and back again | 3/19/2010 |
| Q: Mr. Hintz, It is interesting to me that the animal Hydrozoa can go from young to mature at will. ... A: You will have to explain to me what you mean by changing from young to mature at will. Are you ... | |
| Animal Saliva | 3/18/2010 |
| Q: My 5th grade daughter is doing a science fair project on which mouth is cleaner human, dog or cats. ... A: Just about everybody who tries this experiment uses dog and human saliva and not a cats. I do not ... | |
| Reporting findings | 3/18/2010 |
| Q: Mr. Hintz, I told you the last time that I had been doing research. The topic I have been doing it ... A: First of all I would change the title of the project from "Why do we age?" to something like "what ... | |
| Future Child Hair Color | 3/17/2010 |
| Q: I know its impossible to tell until the baby is born, but I am curious. I have red hair, the only ... A: Most trait involve a single pair of genes but pigments do not so hair colors can come in many ... | |
| Aging and evolution | 3/16/2010 |
| Q: Mr. Hintz, Aging, at least from my research, is a mystery. I don't know if this is answerable but ... A: These articles contend that the factors that bring about the aging process are apart of human ... | |
| Aging and evolution | 3/16/2010 |
| Q: Mr. Hintz, Aging, at least from my research, is a mystery. I don't know if this is answerable but ... A: First of all the aging process is inevitable and we do not know anything about aging in prehistoric ... | |
| Why do humans fart so much? | 3/14/2010 |
| Q: I don't mean to be immature, but why do humans fart so much? If pets farted as much as people, we ... A: This is just a generalization. Some people do it more then others. Domestic animal like cattle do it ... | |
| Trihybrid Cross | 3/14/2010 |
| Q: I saw your clue to this answer, but my teacher had added something to the problem (at the end of the ... A: The genotypes of the two left are as follows EeFfHh x EeFfHh And your punnett square ... | |
| Biology | 3/12/2010 |
| Q: The hydrogens removed during glycolysis, acetyl CoA formation, and the citric acid cycle are first ... A: I am sorry that you feel that way Rhonda but I stand by my policy. You have misinterpreted my ... | |
| Speculative biology of Lovecraft's "gugs," if they were real creatures | 3/11/2010 |
| Q: Maybe it has something to do with my unusual kind of high-functioning learning disability. I know ... A: I see you have been giving serious thought to this topic. And this Gug is new to me I was at one ... | |
| What should I do? | 3/7/2010 |
| Q: Mr. Hintz, Hi! I think All Experts is a very convenient service and I was thinking about ... A: You have to apply to be an expert but it is easy and if you say you are an expert they will believe ... | |
| Genetics | 3/7/2010 |
| Q: A man with cystic fibrosis marries a homozygous dominant woman 1. What is the genotype of the man? ... A: The genotype of the man has to be homozygouse for the disease. I cannot make any predictions unless ... | |
| additional question to Purple People Eaters trihybrid cross question by dee | 3/6/2010 |
| Q: I was wondering how you got those gametes because I also must answer the questions of the Purple ... A: I am not sure what you mean by FOIL but the important thing is to separate the alleles. For example ... | |
| food nutrition | 3/6/2010 |
| Q: Please tell me about food that contain hydro carbonate A: The term hydrocarbonate is used for different compounds. It can refer to sodium bicarbonate, ... | |
| Evolution of Aphids | 3/5/2010 |
| Q: Mr. Hintz, I recently read an article on Science Daily that talks about the evolution of aphids. ... A: I read the article. It seems that statements like an "apparently weak immune system" tells me that ... | |
| Karyotyping | 3/4/2010 |
| Q: I understand that you can determine sex and diseases related to the different numbers of ... A: The karyotype of a girl with turners shows 45 chromosomes, The 23rd pair (sex chromosomes) has ... | |
| New species of deer? | 3/1/2010 |
| Q: Mr. Hintz, First off, what does it take to create a new species? If one group of a species evolves ... A: First of all Mark the increase of auto accidents occurs for two reasons, There is an increase in ... | |
| biology | 2/26/2010 |
| Q: From the cross Aa x Aa, the probability of producing a homozygous dominant offspring is A. 25% B. ... A: Are you working out these genetics problems or just asking me to answer your homework questions ... | |
| biology | 2/26/2010 |
| Q: A woman who isn't colorblind but has an allele for color blindness reproduces with a man who has ... A: There could be no colorblind daughters but half the sons could be colorblind. Can you explain to me ... | |
| Hybrids | 2/25/2010 |
| Q: Mr.Hintz, Hybrids, as you probably know, occur when two different species mate and produce ... A: The Geep is something new to me so I cannot comment on that. As to the fox and coyotes I do not see ... | |
| How gene works | 2/24/2010 |
| Q: I am trying to make a model of a brain in computer and I just thought that the way DNA works might ... A: There are some problems with definitions here. Lets go there first A gene is a packet of DNA ... | |
| Genetics | 2/23/2010 |
| Q: My questions are more on the nomenclature than the science. Obviously the word "genetics" is ... A: 1.Gregor Mendel established the nature of traits being passed on in 1866 but he did not know the ... | |
| Dog Mystery | 2/23/2010 |
| Q: Mr.Hintz, If two groups of one species are isolated from each other, and in different environments, ... A: The domesticated dog Canis familiaris all belong to the same species. You are wondering about the ... | |
| Glucose | 2/22/2010 |
| Q: I am trying to understand the versatility of the Glucose phosphate molecule and how plants utilize ... A: Glucose phosphate is an intermediate step in glucose metabolism. Before glucose is converted to ... | |
| Proof of Lamarckism? | 2/22/2010 |
| Q: Mr. Hintz, I know we have had this conversation before and this is probably a stupid question, but, ... A: There are no stupid questions We have to ask ourselves why don't these fish have eyes. The easy ... | |
| Biology | 2/21/2010 |
| Q: An organism is made up of blink like the digestive system which are made of of blink an example of ... A: I seem to be doing your homework for you. I will tell you how to andwer these and then you figure ... | |
| Evolving Backward | 2/19/2010 |
| Q: Mr. Hintz, Hi! First off, thank you for answering my questions, I really appreciate it. Anyway, I ... A: I think we have to consider change at the molecular level and change in a species. Can a mutation ... | |
| Evolving Backward | 2/19/2010 |
| Q: Mr. Hintz, Hi! First off, thank you for answering my questions, I really appreciate it. Anyway, I ... A: This is an interesting problem in semantics here. Evolution merely means change and the terms ... | |
| Adaptations of land plants | 2/18/2010 |
| Q: What are the key anatomical and physiological changes that took place during the evolution of land ... A: I was thinking of ferns, liverworts, and mosses when I choose that answer because they represent a ... | |
| Feral Animals | 2/18/2010 |
| Q: Mr. Hintz, Sorry if I am asking you too many questions and please let me know if I am. Anyway, ... A: You have a point. If released animals are subjected to geographic isolation a new species could ... | |
| Eugenics | 2/17/2010 |
| Q: I can't really find an articulate rebuttal to the premise of this movement. If a deleterious defect ... A: The early Eugenics movement suggested forced selective breeding. Today we refer to it as Genetic ... | |
| Genes that remain dormat | 2/10/2010 |
| Q: I am taking a biology class in highschool and we were talking about inheriting eye color, but the ... A: It is true that eye color is determined by multiple gene pairs. That is why there are so many shades ... | |
| But doesn't that contradict evolution? | 2/10/2010 |
| Q: Mr. Hintz, Thank you for replying to my questions. But, when you say that there is little argument ... A: OK any time Mark I reread your last question. The flightless cormorant is a separate species from ... | |
| But doesn't that contradict evolution? | 2/9/2010 |
| Q: Mr. Hintz, Thank you for replying to my questions. But, when you say that there is little argument ... A: Lamarck was correct in that if we do not use something it is lost. But that ha nothing to do with ... | |
| Is Darwin saying he believes in Lamarkism? | 2/9/2010 |
| Q: Mr. Hintz, Thanks for answering my last question. But, I was wondering if you could explain this to ... A: There is little argument against the idea that we lose things we don't use and keep things we do ... | |
| genetics | 2/9/2010 |
| Q: What is genetic incompatibility? (Please scientifically clarify with examples) A: Genetic imcompatability is best illustrated with the ABO blood groupings. Blood contains or does not ... | |
| homozygous and heterozyous | 2/9/2010 |
| Q: This is a math question that I am trying to make sure my son and I under is correctly. Father is ... A: Lets look at the problem Let H = Tall h = short eyes Father is HH Tall must dominate since ... | |
| Protein Digestion at different pH levels | 2/5/2010 |
| Q: My daughter has chosen a science project that you have provided answers for before (cut and pasted ... A: I am somewhat confused at this point by your experimental design. It seem you are placing albumin in ... | |
| genetics-hope you can answer | 2/4/2010 |
| Q: Don't know if you can give me any insight but, I have a question about dominant and recessive ... A: It is true that darker pigments dominate over lighter pigments but skin ,hair and eye color are not ... | |
| How long can an organism stay in Cryptobiosis before dying? | 2/3/2010 |
| Q: Mr. Hintz, Hi! I'm Mark and I have a personal interest in Biology. I have a question I hope you can ... A: You are correct. Cryptobiosis is an ametabolic state that certain organisms enter into when ... | |
| Adaption to the Environment | 2/2/2010 |
| Q: I am very interested in biology and the evolution. I got a question, and I hope you have some time ... A: A lion moving into a different environment would not change. Adaptations over time and generations ... | |
| Biological age | 1/31/2010 |
| Q: I have just had my 60th birthday. Is thereany part of my body that actually IS 60 years old? Thank ... A: This is an interesting question Michael. Speaking strictly of time you have circled 60 times. From ... | |
| Marine Plants Moving Onto Land? | 1/28/2010 |
| Q: What adaptations, or changes needs to be made for marine plants to move onto dry land, so these ... A: It seems like you have stated correctly what must (and has) happened. Terrestrial plants have ... | |
| Double Membrane | 1/23/2010 |
| Q: How do you suppose the nucleus became surrounded by a double membrane? A: You ask about a supposition. I would answer that the development of the cell structure was the ... | |
| action potentials | 1/22/2010 |
| Q: I am struggling to understand why the statement below is true. My thoughts so far have been that ... A: The rhythm of the ventricle is only manifest if there is failure of the SA and AV nodes. Since the ... | |
| biological anthropology | 1/20/2010 |
| Q: 1. The heterozygous condition in the snapdragon is an exception to Mendel's Principle of Dominance. ... A: These are homework questions. I will answer the first one but my policy is only to correct homework ... | |
| wisdom teeth and jaw | 1/17/2010 |
| Q: Why does our jaw are generally too small to hold wisdom teeth? I heard it's because nowadays we tend ... A: Actually the lower jaw is not to small and most people;e have no problem with wisdom teeth. About ... | |
| ostrous cycle | 1/17/2010 |
| Q: Mr.Walter Hintz .. I have a couple of question about the menstrual cycle : first one: If the corpus ... A: Progesterone is necessary to maintain the integrity of the endometrium. If the progesterone is cut ... | |
| biology | 1/17/2010 |
| Q: I need help with my science fair project. I am doing whose mouth is cleaner a dog mouth or a humans ... A: You do not stick saliva in gelatin. Dissolve the gelatin an add a little beef broth and let it set ... | |
| Biology | 1/15/2010 |
| Q: I am having trouble finding useful web sites to help me 'to qualitatively investigate two factors ... A: Water moves up through capillary action. You might study a little about capillary action. Anything ... | |
| science project | 1/13/2010 |
| Q: How do I count bacteria colonies when doing the science project dealing with bacteria growth from ... A: I assume you will grow the bacteria on a petri dish. If there are not a lot of colonies there is no ... | |
| germs | 1/12/2010 |
| Q: I am in the 4th grade and my hypothesis is that dog mouths are cleaner. I looked at the article you ... A: I have seen this project done many times Malcolm and I will tell you that the mouth of any animal is ... | |
| Biology | 1/12/2010 |
| Q: Hintz, Can you please describe the endocrine system's negative feedback mechanism?I know that ... A: The endocrine system uses an end product feedback system. For example consider the female ... | |
| Biology | 1/12/2010 |
| Q: Hintz, I hope you can help me with thisI need to answer a question which tells me to write the ... A: REPLICATION of DNA- The DNA helix unravels and duplicates it self...TRANSCRIPTION of RNA-the DNA ... | |
| germs | 1/11/2010 |
| Q: I am in the 4th grade and my hypothesis is that dog mouths are cleaner. I looked at the article you ... A: There no kits made for studying bacteria. The stuff for growing germs has to be bought separately ... | |
| BIOLOGY | 1/9/2010 |
| Q: Can you please explain how you would expect the sequence of amino acids in the beef and pig insulin ... A: I have problems with the wording of your question. How would I expect the AA sequence to compare? ... | |
| Biology | 1/7/2010 |
| Q: Hintz, I checked my entire biology textbook, but could not find these answers: 1}Elephant have ... A: The projections at the end of an elephants trunk are analogous to our fingers. Analogous traits ... | |
| Biology | 1/6/2010 |
| Q: Hintz, I am doing homeschooling so I don't have anyone to help me out with my studies.I would really ... A: You did not set up the gametes correctly The punnett square should be set up like this rT ... | |
| Biology | 1/5/2010 |
| Q: I was wondering which of the following statements do scientists believe to be true? 1)Life on earth ... A: The first three statements are complete nonsense. Life began on earth about 3.5 billion years ago. ... | |
| Animal biology | 1/3/2010 |
| Q: It is not just about animals its about synapses. I kind of understand them but am not sure how to ... A: OK Amelia: Lets start with the basics. The nervous system controls all our activities including our ... | |
| sleeping! | 1/1/2010 |
| Q: why does it happen dat we automatically sleep at night...if we sleep d whole day still we sleep or ... A: There are a lot of mysteries about sleep. The human body requires sleep. There are drugs taht will ... | |
| Body Temperature | 12/29/2009 |
| Q: Body temperature and blood pressure is regulated in the first few months after birth. Could it be ... A: Thermoregulation of the body is regulated by feedback mechanisms involving both the nervous system ... | |
| biology | 12/29/2009 |
| Q: What does informational sequence mean? Can you explain or give me a good definition, and how can I ... A: I am not sure but my guess is that you are thinking about Nucleic acids (DNA and RNA) In that case ... | |
| Biology INVESTIGATORY Project. :( | 12/28/2009 |
| Q: Okay, I'm Supposed To Make A Biology Investigatory Project On "How To Prevent Disease". Which Is ... A: ) The first thing you have to do is list the various causes of disease before you can discuss how ... | |
| Meiosis and Mitoses? | 12/19/2009 |
| Q: Does Meiosis make (sex cells) asexually and why A: You may have a problem with your concepts of sexual and asexual reproduction. Sexual reproduction ... | |
| My problem with my investigatory project | 12/17/2009 |
| Q: good day, sir, i really have a problem and i don't know what to do. you see, i have this ... A: I recently googled " mimosa plants and blood sugar" and found several references to studies done to ... | |
| Science Project Topic | 12/16/2009 |
| Q: Hearing that you are a science teacher, I am almost positive you want students to do their own work. ... A: I have just the thing for you Jenna. There is a protozoan parasite called Toxoplasma gondii. 60 ... | |
| biology | 12/12/2009 |
| Q: I was studying the second step in photosynthesis,which does not require light.In this phase ,carbon ... A: It does not refer to the O2 becaus eit is incorporated into the glycerate molecules but it ... | |
| BIOLOGY | 12/10/2009 |
| Q: EXPLAIN WHY THE INCIDENCE OF COLOR BLINDNESS TENDS TO BE HIGHER IN MALES THAN IN FEMALES. A: Color blindness is a sex linked recessive trait. The defective gene occurs on the 23rd pair of ... | |
| Photosynthesis | 12/8/2009 |
| Q: Why would plant life adapt to grow in such inhabitable environments such as deserts? Is there any ... A: Life is opportunistic. Wherever an ecological niche occurs it is filled. Deserts offer conditions ... | |
| Foot's lesion | 12/7/2009 |
| Q: How do you determine if a foot lesion is caused by a focal infection of an organism or a systemic ... A: A bacterial infection would have pus. If it is a systemic infection other parts of the body would ... | |
| biology lab question | 12/5/2009 |
| Q: the source of your mixed culture is a sputum sample from a person who is exhibiting mild shortness ... A: I am afraid you are asking me do your homework for you and I am unsure how much effort you are ... | |
| biology lab question | 12/4/2009 |
| Q: You are given a mixed culture containing from 1 to 4 organisms. You are to identify these organisms. ... A: I assume these are bacteria cultures. The first thing you do streak the culture on a petri dish and ... | |
| science | 12/4/2009 |
| Q: what are the difference between DNA and RNA? A: DNA RNA In Nucleus In cytoplasm on ribosomes Double ... | |
| Question... | 11/28/2009 |
| Q: Hey if you could answer this question to the best of your ability I’d really appreciate it. It is ... A: Decarbonization of the blood is another way to say that carbon dioxide is removed and oxygen is ... | |
| More information about a project suggested by you. | 11/28/2009 |
| Q: Sir, On 8/11/2004 you had suggested a project to Ruchi about the study of different commercial ... A: In the US distilled water is available at all grocery stores or hardware stores so I am assuming ... | |
| Human anatomy and fighting | 11/28/2009 |
| Q: I am watching Casino Royale (the new one) on TV tonight. I watch, and have seen many times over the ... A: You do not have to know a lot about human anatomy to realize that someone could suffer all that ... | |
| biology, genetics | 11/27/2009 |
| Q: Mr. Hintz. I'm a home-schooling highschool student. Would you please help me? These are some ... A: I will be glad to help you Michael but I have a strict policy that I follow. I will not answer ... | |
| rabbit reproduction | 11/22/2009 |
| Q: -If a rabbit has eleven offspring can the mother take care of all? -How long before they can be ... A: The maximum number of nipples in mammals is usually equal to the maximum number of young the animal ... | |
| Biogeochemical cylces | 11/19/2009 |
| Q: How would phosphorus dust travel from Aisa to Kauai via wind. Would it b the hydrologic cycle ... A: Unless I am missing something here b you are talking about dust being carried by the wind. It is ... | |
| can i ask a question sir ? | 11/14/2009 |
| Q: what is the importance of studying biology ? please answer my question sir, thank you A: Every once in a while I get this question and I must admit it amazes me because to me the answer ... | |
| Science Projects | 11/12/2009 |
| Q: Did you ever have diffuculty picking a science project that interested you? A: No I never did. If you are go to sciencebuddies.com walter I do not know what answer you were ... | |
| mitosis and meiosis | 11/9/2009 |
| Q: You previously answered a question that I had and was able to clear up my misunderstanding. However, ... A: Congratulations for going back to school. Replication means making exact copies so during mitosis ... | |
| biology- chromosomes (mitosis &meiosis) | 11/8/2009 |
| Q: I have a question, I am trying to determine if the 3rd one of these is actually a trick question?? ... A: OK Shannon; T0 start with this is not a trick question but it is a bad question because all cells ... | |
| digestive system | 11/4/2009 |
| Q: The human large intestine is the site of a symbiotic relationship.explain. A: I just answered this question froma guy in Canada. When two separate species live togethe rfor ... | |
| the digestive system | 11/4/2009 |
| Q: i do not understand this question The human large intestine is the site of a symbiotic ... A: Our intestine is occupied with species if bacteria that are symbionts. Symbiosis is the living ... | |
| bilogy | 10/30/2009 |
| Q: why does natural selection acts on the Phenotype and not the genotype of an organism A: The phenotype is the expression of the genetic code and it is the genetic makeup that natural ... | |
| interview | 10/27/2009 |
| Q: I was wondering if you would be interested in answering an interview? I am doing a project on what ... A: 1 Mostly gram positive rod shaped bacteria. Bacillus species. Also harmless staph species 2 The ... | |
| biology and physiology | 10/27/2009 |
| Q: What are the changes in body structures and functions which dont let the dead person come to life ... A: Cellular activity depends upon the proper functioning of the cellular membranes and these activities ... | |
| biology- energy | 10/25/2009 |
| Q: I am am doing a study of comparison on an energy drink (red bull and pepsi) and what some of the ... A: 1. The combo of high sugar and caffeine speeds up thr metabolic rate resulting in greater energy ... | |
| sodium chloride | 10/20/2009 |
| Q: Salt is made up (I read) of 40% sodium and 60% chlorine, making a compound sodium chloride. So with ... A: Nutritional information on a package lists ingrediants by weight of a serving I nave a jar of ... | |
| Anatomy | 10/17/2009 |
| Q: I would like to know how can I make an heart model. It is for a school project and it is meant to ... A: I may be a biologist Jose but when it comes to creative art projects I am a flop. To make a heart ... | |
| Science project on water purification | 10/15/2009 |
| Q: I am a middle school student looking for some help on water purification.i will ask a few Q's: 1. ... A: Water condensation on the outside of a cup has condensed from the air outside but the temperature ... | |
| Osmosis procedure | 10/12/2009 |
| Q: I have an "experiment" if you will that I have to record data on. The only information given is ... A: Question 1. The tubing only simulates a cell membrane because it allows water to pas through ... | |
| microscope field of view | 10/10/2009 |
| Q: I have been looking over my biology book for days and cant figure this out. How do I estimate the ... A: Lets assume that the diameter of the field measures 2mm at 40x (measured with 4x lens in place. You ... | |
| Lab | 10/8/2009 |
| Q: I'm a high school senior and I need to design a glucose experiment (it can be anything that has to ... A: How about studying the fermentation rates of glucose and fructose using bakers yeast (available at ... | |
| Meiosis and Mitosis | 10/7/2009 |
| Q: Hey, The textbook that I have (i'm a high school junior) has a terrible explanation of mitosis and ... A: Cell division is complicated and I really would need diagrams to help explain the steps. You are ... | |
| pinto beans | 10/7/2009 |
| Q: I am a highschooler having to do a project about pinto beans. This project is pretty free base ... A: Years ago in my high school biology classes I had students who experimented with plant hormones or ... | |
| Gaseous exchange | 10/6/2009 |
| Q: Which organs take part in gaseous exchange in animals,fish and insect? A: First of all fish and insects are animals so which other animals are you thinking about? my guess is ... | |
| 7th Grade Science Project | 10/1/2009 |
| Q: My daughter wants to do a science fair project involving pimples and the affects on skin but we ... A: The first thing she has to do is some research to answer these questions. What are the causes of ... | |
| diffusion | 10/1/2009 |
| Q: Right now I am trying to write up a lab report(that's due tomorrow), and I am having a difficult ... A: Simple diffusion- Materials pass through easily from areas of higher concentration to areas of lower ... | |
| abiogenesis | 9/28/2009 |
| Q: Hintz, My qeustion is regarding the definition of abiogenesis. i don't understand the difference ... A: I understand your confusion. It certainly appears that the first living cells came from non-living ... | |
| Humans vs. animals | 9/18/2009 |
| Q: how are humans different from animals? It's a very obvious question but, when you get down to it, ... A: First of all bear in mind that we are members of the animal kingdom. How are we different from other ... | |
| Dog urine soaked carpets | 9/17/2009 |
| Q: I was wondering if you could help us. We love my husbands sister, whom just recently became ... A: I can certainy tell you that this environment is unhealthy but solving teh poblem is another ... | |
| Evolution | 9/13/2009 |
| Q: Explain how natural selection may bring about evolution. Many thanks A: The basic idea behind Natural selection is that variation occurs among individuals of a species and ... | |
| Brain | 9/11/2009 |
| Q: At what speek (kph) does your brain send messages? How many days does an eyelash live? A: Messages in the unmedulated neurons in the beain travel about 3 meters /sec. If you convert this to ... | |
| biology | 9/10/2009 |
| Q: Of the elements hydrogen, carbon, oxygen, magnesioum, and copper, whuch have atromic weights that ... A: The mass number listed on the periodoc table is the average of all weights of the isotopes. And the ... | |
| eye color and skin color in a child | 9/8/2009 |
| Q: I am a african american and hispanic who is married to a pure hispanic man. He has other children ... A: Heredity involving skin, eye and hair color is complicated because these traits have more then a ... | |
| conceiving the concept of cloning. | 9/7/2009 |
| Q: I had a look at your description and it looks like might certainly be able to help with my ... A: DNA from both parents is not required but cells from the female are usually used. Cloning ... | |
| Do bacteria cause nasal mucus to smell bad? | 9/3/2009 |
| Q: Are there any bacteria that feed on nasal mucus? If so, do they produce any colors and odors as a ... A: You have the wrong idea about the function of mucus. Bacteria do not obtain energy from mucus. ... | |
| blood types and punett squares | 8/28/2009 |
| Q: I have answered a question about possible blood types for a parent with type A and one with type B. ... A: You have used only phenotypes and not genotypes. Yjr phenoype is what you can see by typing and the ... | |
| Terrestrial Biome: Tropical Rain Forest | 8/27/2009 |
| Q: How many different species of plants and animals are there in the Tropical Rain Forest biomes. A: If you mean every species of plant and animal this is a tough question to answer because the best ... | |
| blocking smell and taste | 8/20/2009 |
| Q: do you know about the phenomena that a human being can temporary when ever he wants, can block (and ... A: As I stated I have never heard of this.I am a biology professor and as far as I know there is no ... | |
| Genentics | 8/17/2009 |
| Q: When you have a baby is their ears suppose to look identical to either the moms ears or dad's ears? ... A: Humans have 23 pair of chromosomes (46) that code for all hereditary factors including the shape of ... | |
| What is the likelyhood of my children having red hair? | 8/16/2009 |
| Q: Just wondering what our chances are of having a child with red hair with these background colours in ... A: You are carrying genes for blue and so is the partner. Eye and hair color is determined by more ... | |
| Biochemistry | 8/12/2009 |
| Q: The krebs cycle turns pyruvic acid a 3 carbon molecule into CO2 a single carbon molecule. Why has ... A: I have been reading your question over nd have trouble coming to a conclusion. I can see why you ... | |
| Nail Growth after death | 7/9/2009 |
| Q: I know that after death hair and nails still grow, however, if the limb was to be removed from the ... A: After death all cells cease to function and despite popular opinion hair and nails do not grow after ... | |
| Hair genetics | 6/26/2009 |
| Q: I was wondering if you can solve my query. Both my partner and I have red hair - I have black/brown ... A: Dark pigments are dominant over light. Red heads with brown eyes are less common then red hair and ... | |
| Is marine biology a good base for vet school? | 6/20/2009 |
| Q: I saw you answer an earlier question related to marine science and vet school, but my question is ... A: It looks to that the ideal job for you is as a vet specializing in the health and care of marine ... | |
| appearance of blood drained body. | 6/18/2009 |
| Q: In my fictional story, I wanted a young body to be found where it had been completely drained of ... A: Since blood is mostly water a person can drink as much blood as water. I have seen a person drink ... | |
| Classification | 6/18/2009 |
| Q: I need to explain, with an example, how technology has changed the way we classify an organism. The ... A: The classification of all livings is based upon observable differences in morphology and in DNA. ... | |
| Itching and scratching | 6/18/2009 |
| Q: What is the scientific basis for when we feel itchy in some part of the body, that we get this urge ... A: The sensory neurons in skin, those that are stimulated by touch which include hot,cold,pressure, ... | |
| appearance of blood drained body. | 6/17/2009 |
| Q: In my fictional story, I wanted a young body to be found where it had been completely drained of ... A: I see a couple of problems here. IT woul dnot be possible to every last drop out of the body ... | |
| Itching and scratching | 6/17/2009 |
| Q: What is the scientific basis for when we feel itchy in some part of the body, that we get this urge ... A: It is thought that an itch is stimulation of free nerve endings, the skin receptors which are the ... | |
| blood glucose | 6/9/2009 |
| Q: hope you can help why do insulin levels drop as soon as the blood glucose levels stabilize? A: Hormones levels have set points that tend to fluctuate and these levels are controlled by feed back ... | |
| bones | 6/2/2009 |
| Q: if you are unable to answer our Question and know of any one who is alble to help please e-mail me ... A: I am not an Medical doctor and I cannot second guess the doctors you have visited. If I did so I ... | |
| hair | 5/26/2009 |
| Q: if you are unable to answer our Question and know of any one who is alble to help please e-mail me ... A: Genetic traits are dependent upon chance so all I can do is make an educated guess. In this case ... | |
| Scientific theory vs. law. | 5/21/2009 |
| Q: and thank you for answering questions. I understand that a scientific theory ( evolution, ... A: You notice that the words Theory an Law tend often to be interchangeable as with Germ theory and ... | |
| blood | 5/21/2009 |
| Q: my question is that which one out of these is called as Universal recepient AB+ or AB- ANSWER: AB+ ... A: The A and B refer to blood proteins. People with AB blood have both proteins. If you are type A you ... | |
| anatomy | 5/21/2009 |
| Q: please tell me the websites where i can study the anatomy of human thorax.any other information ... A: I believe that the best way to study anatomy is with an anatomy textbook. Go to the library and ... | |
| Scientific theory vs. law. | 5/20/2009 |
| Q: and thank you for answering questions. I understand that a scientific theory ( evolution, ... A: When something stands up to testing over time it is a Law There is a preponderance of evidence that ... | |
| Microscope | 5/20/2009 |
| Q: I don't know much about microscopes, what kind of microscope should i buy (and what magnification ... A: Most scopes come with magnifications of 40x 100x and 440x. To examine tissues you need 440x. For ... | |
| biology - nervous system | 5/19/2009 |
| Q: I was wondering if you could please answer this question - What are excitatory and inhibitory ... A: Neurotransmitters stimulate a neuron to began or stop a depolarization wave(nerve impulse). They ... | |
| Dog Urine | 5/18/2009 |
| Q: My husband and I are having an issue with our elderly dog. He is now peeing everywhere in our house. ... A: I wish I could help you Lauren but this is a medical problem, both for you and for the dog. I ... | |
| bio | 5/14/2009 |
| Q: chest cavity is in normal position but when we inhale chest cavity increases than normal position ... A: During inspiration the chest cavity increases depending upon how deep a breath you take. With ... | |
| pet urine, human urine and mold | 4/29/2009 |
| Q: i just moved out of a house that is one year old, I am being sued by the owner.. he claims that a ... A: AS you know this is a legal problem nd I can only speak to the biological one. Mold occurs under ... | |
| Reproductive cycle | 4/29/2009 |
| Q: Oogenesis in the female results in one functional gamete, the egg, or ovum. What other cells are ... A: Only one egg is needed for reproduction ih humans while millions are sperms are necessary. There are ... | |
| genetics | 4/28/2009 |
| Q: Can my son get hair and eye color from his grandparents even if it differs from mine and my ... A: Certainly! You and your husband have received heredity factors from your parents and you pass ... | |
| Stagnant, standing water | 4/25/2009 |
| Q: My Fiance and I rent a house in Massachusetts. We moved in last Sept, {2008} Shorlty after, we both ... A: First of all I am not a doctor nor a lawyer. I cannot connect your medical problems to the dirty ... | |
| water absorbtion in larg intestin | 4/25/2009 |
| Q: how could osmosis be the cause of water absorption in large intestine when in end part of large ... A: I am not sure what you mean by water concentration in the intestinal wall. The concentration ... | |
| How Long Can a Person Stay in the Water? | 4/25/2009 |
| Q: I have a rather interesting question. I'm not going to get into how I derived at this question, but ... A: I am not surprized that you cannot find a good answer to this question. The main problem is the ... | |
| what will my baby look like? | 4/23/2009 |
| Q: i am 11 weeks pregnant and i know its pretty soon to know any thing or even the gender of the baby ... A: Dark pigments always dominate over light pigments. Since you and your husband have dark hair eyes ... | |
| science project (biology) | 4/17/2009 |
| Q: What's a good way to make a science project on a imaginary alien. It will be drawn. What will be a ... A: First of all let me say that this scenario does not lend itself to scientific method. You can use an ... | |
| science project (biology) | 4/16/2009 |
| Q: What's a good way to make a science project on a imaginary alien. It will be drawn. What will be a ... A: I have been pondering this question for two days now and the problem is this. Science is based upon ... | |
| Experiment - measuring photosynthesis with diff pH | 4/13/2009 |
| Q: long & interesting question..I carried out an experiment to measure the rate of photosynthesis( by ... A: All chemical reactions including photo synthesis depend upon enzymes and enzymes operate within ... | |
| Experiment - measuring photosynthesis with diff pH | 4/13/2009 |
| Q: long & interesting question..I carried out an experiment to measure the rate of photosynthesis( by ... A: It looks like you carried out your study well except for the difference in the size of the plants. ... | |
| biology | 4/12/2009 |
| Q: when, scientificaly, does life begin? A: The question is controversial if we are talking about the life of a new individual. Some people ... | |
| Spore Formation | 4/11/2009 |
| Q: How do spores form? I really don't understand the terns "germination" or "vegetative" cells. ... A: It depends upon the spore but I assume you are thinking about reproductive spores which are formed ... | |
| Stem Cell Survey | 4/11/2009 |
| Q: I am Vinit and I am conducting a survey on stem cell research for my college news paper. I would ... A: 1. I support it 2. not that I am aware of 3.opposition on religious grounds 4.Only in a research ... | |
| planaria | 4/7/2009 |
| Q: I am a high school student and trying to come up with a challenging science fair project. I would ... A: Regeneration studies on planaria is easy. All you need are fresh water and of course planaria. ... | |
| Biology | 4/3/2009 |
| Q: I was wondering if you could please answer this question. How is the activation energy for enzyme ... A: Biochemical reactions are controlled by feedback mechanisms. One of them is end product ... | |
| Can bacteria convert milk to "butter"? | 3/30/2009 |
| Q: I've heard that bacteria can easily digest and metabolize carbohydrates and proteins but cannot ... A: There are species of bacteria that can metabolize anything including inorganic compounds (sulfur ... | |
| bio | 3/19/2009 |
| Q: at one time blood was only transfused from younger individuals to the elderly, it was believed that ... A: If an older person is anemic then a transfusion would in crease energy but old people do not have ... | |
| selection nd evolution | 3/16/2009 |
| Q: what is stabilizing selection and disruptive selection....how do they differ from each other?? A: Consider birth weight in human babies. We can construct a curve with the heaviest babies at one end ... | |
| evolution | 3/16/2009 |
| Q: what do we mean by isolating mechanism? how exactly does this helps to bring about evolution... A: Darwin stated that there is variation among species. In a large population with a large gene pool ... | |
| speed of blood circulation | 3/3/2009 |
| Q: yes... is there such a thing as "the speed of blood", like 100 miles an hour 0r 100 yards a second ... A: Sure. Anything that is moving can be measured.The speed of blood however is measured over distance ... | |
| hazel eyes | 3/2/2009 |
| Q: i have light hazel eyes and both of my parents have dark brown eyes. why is this? also when the ... A: Eye color is due to pigments and there are multiple genes that determine the amount of pigments in ... | |
| biology | 3/2/2009 |
| Q: You are given a polypeptide that is composed of five amino acids: methionine-valine-glutamine- ... A: You must have a codon sheet in your textbook. ThesE ARE code for particular amino acids. For ... | |
| biology | 3/1/2009 |
| Q: You are given a polypeptide that is composed of five amino acids: methionine-valine-glutamine- ... A: This is the third time I have gotton the exact same question from different people. Are you a class ... | |
| Bullfrogs' not sleeping | 2/26/2009 |
| Q: I learned this evening that bullfrogs do not sleep. I would like to know _why_ they don't sleep. ... A: We have to define sleep. To us it is a form of unconsciousness with eyes closed and a predominance ... | |
| Genetics/Physiology | 2/25/2009 |
| Q: My friend and I were debating whether you could theoretically engineer a snail to move quickly. Is ... A: I have never considered this question before but from what I know about biology I would think not. ... | |
| bio | 2/23/2009 |
| Q: i did this lab i was wondering a 50% sucrose solution is half sucrose and half water. Only the ... A: 50% sucrose is half water. I assume you placed a bag with 50% sucrose in beakers with various ... | |
| bio | 2/23/2009 |
| Q: how would red blood cells respond if they were placed in a a) hypotonic solution b) hypertonic ... A: Osmosis is simple diffusion. Substances (in this case H2O)always move from a high concentration to a ... | |
| biology | 2/21/2009 |
| Q: I am an young earth creationist so you know.I have two short opinion questions for you with follow ... A: The Cambrian explosion and the fossil records give us evidence for an evolutionary process. ... | |
| biology experiments | 2/18/2009 |
| Q: I have recently "inherited" a 7th grade biology class. I'm not a biology teacher but since nobody ... A: Believe it or not teaching biology to 7th graders is about the easiest thing you can teach. Why? ... | |
| Biolodgy:Photosynthesis | 2/17/2009 |
| Q: How does a plant and animal get glucose molecules? A: These are extremely complicated chemical processes but to summarize; The producers (green plants) ... | |
| Left Brain Dominance | 2/12/2009 |
| Q: I am a fifteen year old narrowing down topics for a science fair. I am interested in human ... A: I do not believe it is too ambitious but I do believe it would be very difficult to design an ... | |
| Animal sight | 2/10/2009 |
| Q: While I was watching Animal Planet, it hit me that a lot of times the narrator will talk about how ... A: How and what animals see can be determined by studying the behavior and their place in a food web. ... | |
| gravity and size | 2/1/2009 |
| Q: I am trying to find out what the effects of earth's gravity would have on a human body if that ... A: Isaac Newton said that every body in the universe is attracted to every other body with a force ... | |
| biochemistry | 1/31/2009 |
| Q: i am a MBBS 1st year student .request is that can u tell me the websites for biochemistry and ... A: I am a firm believer that searching the internet for general information about these topics is a ... | |
| Science | 1/29/2009 |
| Q: I'm in 7th grade and im doing a science faire project on " Dose second hand smoke effect plant ... A: Ok Corey Your hypothesis is a guess as to whether tobacco smoke effects the growth of plants. What ... | |
| Organisms | 1/29/2009 |
| Q: Why is there a limit to how big organisms can be? In what way does this limit hold true for all ... A: All living thing have limits on their growth and it is controlle dby the DNA The largest animals ... | |
| biology help | 1/25/2009 |
| Q: thnx a lot for the help but there is one thing that i am still confused about which is when we take ... A: U replaces T in RNA Base pairing rule DNA-DNA DNA - RNA A-T A-U T-A ... | |
| help in biology | 1/24/2009 |
| Q: i am a second secondary student and i have a few questions for u!!! first could u explain to me the ... A: Sure. DNA replicates a strand of mRNA according the base pairing rule A-U G-C T-A and C-G. The ... | |
| help in biology | 1/24/2009 |
| Q: i am a second secondary student and i have a few questions for u!!! first could u explain to me the ... A: You have so many questions here that it would take me pages to answer. In fact I would cover this ... | |
| nervous system | 1/24/2009 |
| Q: i needto know the differnce between the nervous system and hormonal system..i can only think that ... A: Actually the reflex arc would be a good way to do it because both sensory and motor neurons are ... | |
| blood types | 1/24/2009 |
| Q: I know blood types can affect personality, but can your blood type affect health and metal status? ... A: I have never seen any evidence that blood types have any effects on the body physically or mentally. ... | |
| hair strength | 1/24/2009 |
| Q: it's me again, I heard that our scalp hair are strong and very elastic that each hair can cope with ... A: Where are you getting all this information about hair? Coping with a strain of 100 grams? 100 ... | |
| DNA | 1/22/2009 |
| Q: I have been taking more interest in science lately than I did when I was at school and I wonder if I ... A: DNA represents a code made up of of 5 symbols A T G C and U (Found in RNA in place of T. These are ... | |
| biology | 1/21/2009 |
| Q: 1. what cause muscle soreness during exercise? 2.why do cells produce more ATP under aerobic ... A: 1. During exercise pyruvic acid is degraded by fermentation and a byproduct is lactate. Lactate ... | |
| eating | 1/19/2009 |
| Q: Why do humans and animals have to eat and drink to stay alive? Why doesn't eating alone do the ... A: Water is a solvent. Body chemistry depends upon organic molecules in solution. The system system ... | |
| biology(crocodiles& repltiles) | 1/13/2009 |
| Q: most reptiles do not care to thier young ,but some crocodiles do why is that? A: Why questions are in the realm of evolutionary biology. Care of the young is controlled by the DNA ... | |
| 1st grade experiment | 1/12/2009 |
| Q: Hintz, I'm a stay home mom knows very little about science. My 6 years old started a science club ... A: The best way would be to culture the bacteria from the hands. To do this you will need some media ... | |
| cellular respiration | 1/11/2009 |
| Q: In my Biology class we are working on Cellular Respiration and I am having some trouble. I ... A: Cellular respiration is the metabolic process by which glucose is broken down into water and CO2 ... | |
| Whose mouth is clearner a dog or a human | 1/10/2009 |
| Q: How do I count the colonies in my dish? Any other information that can help me in my science fair ... A: Have you already performed this experiment or are about to. Which is it. Either way you should ... | |
| yeast metabolism | 1/7/2009 |
| Q: Hintz I want to know about yeast metabolism I'm in seventh grade. Thank you. A: Yeast is a fungus and a saprophyte. It gets its energy from non living organic material. There are ... | |
| Weight reduction after death? | 1/5/2009 |
| Q: I hope this finds you in good health and spirits! My question belongs in the 'curio' department, ... A: This idea came from an experiment carried out by a doctor in 1907 and the figure was 21 grams not ... | |
| human body | 12/25/2008 |
| Q: Sir Human body contains both nitrogen as well as glycerol(by the digestion of food),then why these ... A: I cannot answer the question about nitroglecerin but the basic laws of chemistry determine how ... | |
| Menstrual "Bleeding" in Animals? | 12/21/2008 |
| Q: I've read on this site that non-marsupial mammals do have menstrual cycles "of a sort." My question ... A: Menstrual cycles are characteristic of Primates (apes and humans). Other placental mammals have ... | |
| Human anatomy | 12/16/2008 |
| Q: Sir, I would like to know why the blood vessel going from the right ventrical our heart to our lungs ... A: All vessels carrying blood away from the heart are referred to as ateries and vessels carrying blood ... | |
| meiosis | 12/13/2008 |
| Q: 1. explain how does meiosis lead to variation 2.explain how mutations lead to evolutinary change A: During meiosis the paired genes separate. Assume an egg carrying a gene for blue eyes and a gene ... | |
| please help me study for finals | 12/11/2008 |
| Q: i need to identify interactions that occur within communites. and was wondering if you could help ... A: Almost all inteactions within a community are trophic. Read up on food webs. The recovery of an ... | |
| trihybrid cross | 12/8/2008 |
| Q: In my biology class we were given the assignment to create a trihyrbid cross for the following ... A: Here is your F1 cross BBRRSS x bbrrss F1- BbRrSs Phenotype is Black ,rough and ... | |
| reg behaviours | 12/1/2008 |
| Q: I have seen number of people who are basically male biologically but exhibit female behaviours. I ... A: There is no such thing as 100% male or female. Look at this ... | |
| digestive system | 11/29/2008 |
| Q: A: This is an artistic endeavor and I am afraid that you have asked a person with very limited artistic ... | |
| Marine Biology Teaching | 11/27/2008 |
| Q: im 16 years old and a junior in High School In California. And ive been thinking alot about college ... A: Do some self study on your own on biochemistry. Look for a college biochem book and study it. Most ... | |
| Marine Biology Teaching | 11/27/2008 |
| Q: im 16 years old and a junior in High School In California. And ive been thinking alot about college ... A: You must first get a degree in general Biology which takes four years. Marine biology is graduate ... | |
| does ciggarette smoke effect plants | 11/25/2008 |
| Q: but the thing is i know othing about this topic and im already behind in my project.I haven't even ... A: Smoke can effect plants depending on how much smoke is involved. To set up your experiment so that ... | |
| About practical statement | 11/24/2008 |
| Q: In the practical/experiment questions, if it ask "account fully for your results as fully as ... A: When reporting the results of a scientific study you have to include all data and your conclusions ... | |
| Carrers in Wildlife Biology | 11/16/2008 |
| Q: I have a bachelors in biology and did not continue on in the field for 5 years. Now I wish to ... A: I cannot tell you much about what to say on applications but I have a suggestion for you. I do not ... | |
| My baby´s eye color. | 11/6/2008 |
| Q: Hintz, I know that you probably get a lot of mails about this subject, but I also as a new becoming ... A: You are correct Natalia. I get questions like this a lot and all I can do is make predictions based ... | |
| Whose mouth is cleaner a dog's or a human's? | 11/5/2008 |
| Q: Hintz, I'm very honored to have the chance to ask an expert a question! Well, I'm going to ... A: In the scientific method you first decide on a problem or question You have done this. Which mouth ... | |
| biology | 11/4/2008 |
| Q: Have severe and rapid changes in the earths ecosystems acted like a catalyst towards the ... A: Consider the insect population in an equatorial area and the tundra for example. Organisms fit ... | |
| potato and salt water cells | 11/3/2008 |
| Q: What are the properties of salt water and potato cells? i have searched all over for this answer ... A: Osmosis is the movement of water across a semipermeable membrane. If we put a potato in salt water ... | |
| Biology - genetics | 11/3/2008 |
| Q: Explain how DNA can be studied using gel electrophoreses. A: I cannot explain the whole proceedure in this space but suffice to say the DNA segments are ... | |
| Human biology | 11/2/2008 |
| Q: I am doing my science GCSE early but I am only in year 9, do you know how I can revise without ... A: He was an obstetrition in Vienna in the 1850s. Doctors were dissecting cadavers of woman who died ... | |
| animal and plant cells | 10/30/2008 |
| Q: compare the seperation of an animal daughter cell with that of a plant. A: Dividing cells separate during late telophase. In animal cells there is an invagination with the ... | |
| fish | 10/29/2008 |
| Q: I took my 5 yr old grandson to our near by lake Aug. 17, we caught a what I thought was a minnow, in ... A: When you say it is giving birth is it laying eggs or giving birth to live fish? If a live bearer ... | |
| biology | 10/28/2008 |
| Q: are human being still evolving? ANSWER: Yes. Evolution is a characteristic of all living things ... A: This is difficult because Homo sapiens has not been around for very long and evolutionary changes do ... | |
| science experiment | 10/24/2008 |
| Q: Hintz, My daughter, Rebecca, and I asked you a couple of weeks ago about a science experiment she is ... A: I am glad the study was a success. In the photo you sent the red blotch is a red mold. I also notes ... | |
| biology | 10/24/2008 |
| Q: Why does oxygen get released during the electron transport chain of photosynthesis? What must ... A: It is a byproduct of photosynthesis Photosynthesis 6H2O + 6CO2>>>>>>C6H12O6 + 6O2 A ... | |
| Biology12 | 10/23/2008 |
| Q: I have a lab write-up. it's about the hypertonic a and hypotonic lab. we used potato cut it in same ... A: All of these questions involve osmosis' 1. Distilled water is used so the desired salt concentration ... | |
| Fungi? | 10/22/2008 |
| Q: I have a yard on the side of my house that has a mound of dirt. There is not much water access or ... A: They could be fingus spores but without seeing this up close I cannot tell. It does not sound like ... | |
| Ozone? | 10/21/2008 |
| Q: I was wondering if you would be able to answer the following questions for me: What is Ozone? What ... A: Ozone is O3. It is found in quantity in the upper atmophere where it filters out ultraviolet rays. ... | |
| fusion of chromosome 2 | 10/20/2008 |
| Q: Well i have a friend who is a normal healthy 19 year old and she is going to have her second baby. ... A: Incest does not necessarily result in serious mutation. Whether or not the father passed on this ... | |
| Punnett square set up | 10/16/2008 |
| Q: I'm having some difficulty setting the following up....In the radish plant,the long and round traits ... A: Here is how I interpret this problem Ther eis incomplete dominance here. Crossing red and white ... | |
| homeostatic | 10/13/2008 |
| Q: .. could you give me an idea on what i have to do for one of my tasks..i have to choose to ... A: Homeostasis is keeping the status quo. Take body temperature for example. Feedback mechanisms keep ... | |
| Questions about hypertonic,hyportonic and isotonic solutions | 10/11/2008 |
| Q: I am glad that i found a great site. i want to know about why water moved into or out of the potato ... A: The movement of water through membranes is called osmosis and the movement always goes from an are ... | |
| biology- ecosystems | 10/11/2008 |
| Q: .. i needed your help to help me understand one of my coursework tasks.. it says i need to descrive ... A: I am an ecologist but am unaware of a "greenfield" ecosystem. Are we talking about a grassland? In ... | |
| bacteria experiment | 10/5/2008 |
| Q: My daughter (Rebecca) and I are working through an experiment testing out the "Five Second Rule". ... A: Without incuabtion the growth will slower and maximum growth should occur in about a day and a ... | |
| bacteria experiment | 10/5/2008 |
| Q: My daughter (Rebecca) and I are working through an experiment testing out the "Five Second Rule". ... A: I cannot answer as to why the gel liquified unless ot got to hot. If you try again try incubating ... | |
| science fair project | 9/29/2008 |
| Q: ok we are having a science fair project and i need help finding out info for " How does Cigarette ... A: Are you required to design an experiment for this project. If so you will have a problem finding ... | |
| Transport in animals Z biology | 9/29/2008 |
| Q: I dont understand what exactly this question talking about can you explain and how should i write ... A: These blood cells are classified on the basis of whether or not they have granules. the structure of ... | |
| Biology | 9/26/2008 |
| Q: What are the important of Biology in Education A: I am often asked this question. As a biologist I am amazed. We are living beings and biology is the ... | |
| General Biology | 9/23/2008 |
| Q: I know that diffusion and molecular weight are reversely proportional, but i don't understand why. ... A: I am not entirely sure about this question. Diffusion however is the movement of molecules fron an ... | |
| nitrogen cycle | 9/22/2008 |
| Q: i need two examples of how nitrogen cycles from the abiotic portion of the environment into living ... A: Atmospheric N is fixed in the soil by bacteria. It is absorbed in plants and the plants eaten by ... | |
| Speciation | 9/21/2008 |
| Q: I have some problems regarding many fields of biology, hope you can explain them to me. 1) If, given ... A: 1. The best way to determine dominance and recessiveness is by comparing the numbers of those with ... | |
| surface area to volume ratio | 9/15/2008 |
| Q: i now understand a little how to work it out but i am tryin to work it out on a calcualator and when ... A: Ok Jennifer So you have a cube with a side of 4cm. That means that the surface area is 96 sq cm ... | |
| Counting colonies | 9/12/2008 |
| Q: i grew two agar dishes. one with dog saliva and the other with mine.I put them in the attic and they ... A: I assume there are a lot of colonies. If so here is what you do. Using a ruler Make a grid of ... | |
| on ladybugs | 9/3/2008 |
| Q: what investigatory project can i conduct using ladybugs? A: You may want to do a life history study of these beetles. You will have to purchase a colony of them ... | |
| growing samples | 9/3/2008 |
| Q: I teach 3rd grade and we want to take samples of keyboards, phones, door knobs, etc and try to grow ... A: Dissolve the bouillon cubes in the gelatin. The beef broth is needed for the food for the bacteria. ... | |
| Science Fair | 9/1/2008 |
| Q: Do you have any ideas for a project involvinhg ladybugs I could do for the science fair at my ... A: The only thing I can suggest is a life history study. You can buy about 1500 ladybugs for under 20 ... | |
| Tropical Forest | 8/26/2008 |
| Q: I am working on a summer assignment for my AP Bio class. I'd like to know some interesting facts ... A: I have visited the rain forest a number of times and I could write pages about it but unfortunately ... | |
| science | 8/25/2008 |
| Q: I don't mean to be rude but can you please tell me if it is true that when men ejaculate and release ... A: It is true that sexual activity uses energy but the amount lost depends upon how much activity is ... | |
| Brain.. | 8/23/2008 |
| Q: All human beings have same kind of brain..I mean everyone's brain functions in a same way but still ... A: The brain of a newborn baby is considered a tabula rosa (or blank slate) with no experiences or ... | |
| dna | 8/18/2008 |
| Q: i would like to know how we (humans) have advanced from all our knowledge about DNA. i've done some ... A: The greatest gain is our ability to alter DNA. I am diabetic and I can live a good life because we ... | |
| biology | 8/13/2008 |
| Q: hey, my name is lauryn and im in 9th grade. im trying to find a testable science project but i cant ... A: I have been thinking about the "throw like a girl" idea. I ca see some interesting possibilites ... | |
| biology | 8/13/2008 |
| Q: hey, my name is lauryn and im in 9th grade. im trying to find a testable science project but i cant ... A: That means that you are to use the scientific method It is difficult to design a project about ... | |
| Exercise | 8/10/2008 |
| Q: Plz tell me that during exercise we tend to lose weight as well as our skin is reduced..How is this ... A: Cells are always decreasing. New cells are also always forming When the cell production equals the ... | |
| nerve impulses | 8/9/2008 |
| Q: . I've read that nerve impulses are electric in nature..So is there any diference b/w the electric ... A: An electrical current is a flow of electrons while a nerve impulse is a flow of ions across a cell ... | |
| Wrinkling or fingers | 8/9/2008 |
| Q: When our body is immersed in water for a while, wrinkles are formed on our fingertips.. Why these ... A: The outer layer of the skin has dead cells of keratin that absorb water and swell increasing the ... | |
| Iodine color | 8/8/2008 |
| Q: Iodine changes the color of starch but not of glucose while both are the forms of carbohydrates..why ... A: It depends uon the structure of the molecules. Iodine reacts with a component of a starch moleculs ... | |
| weird bugs in my apartment!!! | 8/8/2008 |
| Q: Hintz, I have a problem, i have these small bugs in my apartment and i need to find out what they ... A: I believe these are plaster bagworms. Bagworms are caterpillars that build a small case and drag it ... | |
| Kreb Cycle (Citric acid cycle) | 8/1/2008 |
| Q: hey, not sure if you are the correct person to ask about this one, but everyone else is on ... A: I always tell my students that to understand concepts like Krebs they must look at the whole picture ... | |
| Does every human has different rod and cones? | 8/1/2008 |
| Q: Sorry I don't mean to ask the same question again, but I have been told our cones and rod vary, ... A: The photo receptors in all humans are the same. And the nerve impulses are all the same. It is in ... | |
| Biology Questions | 7/31/2008 |
| Q: I have two questions if you could please answer them in complete sentences. 1. Which exhibits more ... A: Mammals exhibit more learned behavior then fish Learned behavior is more important to crocodiles ... | |
| Biology question | 7/30/2008 |
| Q: what is the difference between the concept of eco system evolution and species evolution A: There are different definitions for evolution. Basically it means change. An ecosystem changes ... | |
| Do human have the same biochemical system in our body? | 7/29/2008 |
| Q: -Do human have the same biochemical system in our body, that we produce the same signal,flavour and ... A: Well you ceratinly have a lot of questions here and also some false premises. First of all the ... | |
| Reviving subject after freezing | 7/24/2008 |
| Q: My purpose of writing in, is to hope to seek for an answer. Pardon me for my bad English. I would ... A: Dead cells are dead cells and enzymes cannot re activated. I do not know any specific studies but a ... | |
| Reviving subject after freezing | 7/24/2008 |
| Q: My purpose of writing in, is to hope to seek for an answer. Pardon me for my bad English. I would ... A: When tissue is frozen slowly ice crystals form in the cells and the cell is destroyed. Some ... | |
| Taxonomy | 7/3/2008 |
| Q: I study in india in class 11th. I like biology but am weak in some areas. At present we are studying ... A: Separating living things is done by discovering what they hae in common. For example what do ... | |
| Does every human taste receptor work differently? Do we enjoy the same kind of taste sensation? | 7/1/2008 |
| Q: I understand no human taste receptor work exactly the same,does all the normal human taste receptor ... A: We cannot really tell what other people taste anymore then we can tell what color they see. AS long ... | |
| Does every human taste receptor work differently? Do we enjoy the same kind of taste sensation? | 6/30/2008 |
| Q: I understand no human taste receptor work exactly the same,does all the normal human taste receptor ... A: First of all Rambo you must distinguish between taste and flavor. We taste sweet.sour,salty.and ... | |
| the route of a drop of blood | 6/27/2008 |
| Q: what is the route of a drop of blood from the superior vena cava. A: S. Vena cava-Right atrium- r. ventricle-pulmonary artery-lungs-pulmonary veins-left atrium-left ... | |
| Hair and Eyes of my baby... | 6/24/2008 |
| Q: I hope you can be more helpful and maybe more nice than that of the previous person I sent this to: ... A: Since your maternal grandfather had blue eyes you may be carrying that gene and due to the lightness ... | |
| Biology | 6/17/2008 |
| Q: My son needs help with a question that is on a paper he has to do. I hope you can help. I saw that ... A: There is no formula for protein synthesis. and it is a very complicated process involving the ... | |
| Biology | 6/15/2008 |
| Q: Is fire alive and what are the properties of life? A: In my biology classes I light a candle and ask my students to write a convincing argument that the ... | |
| genetics | 6/15/2008 |
| Q: why the parthenogenesis is possible in frog but not in mice? A: Why questions involve evolutionary biology and parthenogenesis has developed in animals other then ... | |
| sharks/blood | 6/4/2008 |
| Q: sorry I know this isn't exactly your area, but I couldn't see any other "experts" who might answer ... A: We have a tendency to compare our senses to those of other animals. That doesn't work The sense of ... | |
| Is my Jack Dempsey dieing or is she pregnant? | 6/4/2008 |
| Q: my jack Dempsey was running low on food for a few days. I made it to the pet store finally but the ... A: It sounds like a problem with her swim bladder. I had a similar problem a few years ago with a ... | |
| General/ Curious | 6/2/2008 |
| Q: Why is it important for me as a student to study cells? And how does cell functions benefit me in my ... A: If you are studying biology you must understand the cell because it is the basis of a living ... | |
| biology | 5/31/2008 |
| Q: i have to make a project on biology.the topic is LIFE UNDER A MICROSCOPE.i am not getting ... A: You will have to make a list of the types of microscopic organisms and then research them ... | |
| horse genetics punnet square | 5/30/2008 |
| Q: I have to do two punnet squares but im not sure how to set them up? I was wondering if you could ... A: This is a rediculous genetic problem. I never saw anassignment of a four trait cross, but here is ... | |
| Microbiology | 5/28/2008 |
| Q: A teacher asked us how to explain how does a spiral honey glazed ham stays preserved. It has to do ... A: The structure of the cell membrane is difficult to see but it thought to have bilevel plasma like ... | |
| Microbiology | 5/28/2008 |
| Q: A teacher asked us how to explain how does a spiral honey glazed ham stays preserved. It has to do ... A: The tonicity has to do with the cellular water content in relation to the extracellular water ... | |
| Levene's Tetranucleotide theory | 5/26/2008 |
| Q: I am reviewing material for exams and one of the objectives is: Outline how the tetranucleotide ... A: The concept of DNA as the genetic material is well established with the completion of the human ... | |
| help trying to improve my studys | 5/24/2008 |
| Q: can you tell me what are two ways recombinant bacteria are used for human applications A: I am a diabetic and I take insulin. The insulin I take is human insulin manufactured by genetically ... | |
| rinsing dishes | 5/21/2008 |
| Q: my partner when he does the dishes doesn't rinse and it bothers me because I firmly believe you ... A: There have been studies showing that children can be poisoned by ingesting detergents. But only if ... | |
| night vision | 5/18/2008 |
| Q: I have recently found myself very interested that cats and other animals can see much better in the ... A: Very interesting thinking Leigh. I have never heard of such studies being done on humans. Our ... | |
| AGAR | 5/18/2008 |
| Q: I bought 2 viles of agar for a science fair project.The directions said 1/2tsp of agar to 1 cup ... A: The agar should work as long as it is a gel. Follow the directions on the product not what the ... | |
| Converting Units | 5/16/2008 |
| Q: I'm having trouble understanding unit conversions. My question is suppose that, from measurements in ... A: 1 micon (micrometer = 10 to the -6 meters so 1 square micro would equal 1 x 10 to the -12 square m ... | |
| science | 5/12/2008 |
| Q: i need to know what continent is the desert biome on? A: Every continent has a desert biome. A desert is any area that gets less than ten inches of rain a ... | |
| Worms in drain pipes | 5/12/2008 |
| Q: Much to my wife's shock tonight, she notice some small white worms floating in the bath water. Upon ... A: You can send the photos to waltjh@sbcglobal.net. These sound like maggots from drain flies. They ... | |
| Animal Cloning | 5/10/2008 |
| Q: I'm a high school student and I have been researching about safety and the animal rights of animal ... A: We are already harming animals to improve our lives. We are killing them for food. Whether or not ... | |
| bateria | 5/10/2008 |
| Q: We have a 8 day old crop of bacteria we grew in the agar gel in 12 different petri dishes. Is this ... A: Without examining every colony on a petri dish it is hard to tell which are harmful so it is a good ... | |
| Biology | 5/8/2008 |
| Q: What component is present in every part of a loop, such as one that involves proteins producing ... A: Would you satisfy my curiosity. I have been receiving these same questions for a couple of years. ... | |
| biology | 5/6/2008 |
| Q: i have to prepare a good project for my biology subject . i am in class-9 and need some interesting ... A: Since I do not know where your interests lie it is hard for me to select a project so here is what I ... | |
| help please | 5/3/2008 |
| Q: how does the DNA nucleotide sequence determine the amino acid sequence in a protein? A: The DNA makes mRNA according to the base pairing rule A-U T-A C-G G-c Three sequence ... | |
| horror | 5/3/2008 |
| Q: i was watching the hills have eyes, which is a movie about an abnormal family that lives in total ... A: This was just a movie Aaron. I suppose it is possible that a bunch of crazy people might be ... | |
| Behavioral science | 5/2/2008 |
| Q: Write a 350- to 700-word response identifying the major regions of the brain and what functions of ... A: Hey Adam; I am sorry but I do not have time to write essays for anybody. All experts is a free ... | |
| Body Temperature - Heat | 5/1/2008 |
| Q: Our body temperature is approx. 36,6 degrees. Why then do we feel so hot at temperatures of, say, 30 ... A: Normal body temperature is 37.5 C but varies in individuals. How you "feel" is relative. Some ... | |
| Pregnancy and smoking | 4/30/2008 |
| Q: Greetings sir, I am a school student studying biology at school and we are currently covering up the ... A: Keep in mind the the cord is the avenue of transfer of blood between the mother and the placenta. ... | |
| field of view | 4/29/2008 |
| Q: How do I calculate the field of view for 400x objective? After I have calculated FOV how do I ... A: If you have measured the width of the field all you have to do is estimate how th cell fits into the ... | |
| i was asked to give 2 examples of the difference between genotype and phenotype and i only have one | 4/23/2008 |
| Q: what 2 examples would you give for the difference between phenotype and genotype? A: Easy question gerald. here are a couple 1. I have brown eyes. That is my phenotype I have ... | |
| Biology | 4/21/2008 |
| Q: What are the advantages and disadvantages of asexual reproduction? A: Asexual reproduction does not require any meiotic division which lessens the possibility of problems ... | |
| Brainwaves | 4/18/2008 |
| Q: I have been looking up brainwaves, theta, alpha etc as a matter of curiosity. However I was ... A: Keep in mind that brain waves are a measurement of neuronal activity involving the flow of positive ... | |
| enzyme and hormon | 4/17/2008 |
| Q: what is the difference between enzyme and hormon ? A: All enzymes are proteins and act as catalysts. They start or speed up a chemical reaction but are ... | |
| Biology Major | 4/12/2008 |
| Q: I understand that you have been teaching biolgy for over 50 years so I ask, what is you advise for ... A: Good for you. Since you are a senior I assume that you have taken your high school science courses. ... | |
| seminar | 4/12/2008 |
| Q: Most of the students that study in biology fields here in our university are those whom couldn't be ... A: The best way to study biology is to do things. Any hands-on activity usually stimulates interest. ... | |
| human heart | 4/12/2008 |
| Q: I've check all the sites that I now but none of them has given me the information that i want....so ... A: To be honest Steph, I have never seen a really good heart model. Making a really three dimensional ... | |
| biology | 4/11/2008 |
| Q: IN rabbits,solid black fur color is dominant to spotted fur. A rabbit is found to have black fur. ... A: Let B = Solid black b = spotted Black rabbit is either BB or Bb There are two ways to ... | |
| biology | 4/11/2008 |
| Q: In birds, long tail feathers ara dominant to short tail feathers. aheterozygus male is mated with a ... A: Let R = round r = wrinkled Parent plant genotype is Rr Cross is Rr x Rr R ... | |
| plants | 4/10/2008 |
| Q: 1.why is it advantageous for plants to have a vascular system? 2.what are meristems and how are they ... A: The plant requires the movements of food and water. It is the vascular system that carries this out ... | |
| biology | 4/10/2008 |
| Q: In birds, long tail feathers ara dominant to short tail feathers. aheterozygus male is mated with a ... A: Let L= long feathers l = short feathers Male in question is Ll Female is ll parents of the ... | |
| Marine Biology | 4/7/2008 |
| Q: I'm 16 years old and I want to be either a physical therapist or marine biologist, but I'm leaning ... A: All ecosystems operate under the same conditions but the orgaisms differ Ther are two places near ... | |
| the biologist inside of me | 4/3/2008 |
| Q: I’m currently studying molecular biology at university, but my real dream is to work as a researcher ... A: Good for you Giulia. The field biologist is becoming a dying breed as many young biologists are ... | |
| Marine Biology | 4/2/2008 |
| Q: I'm 16 years old and I want to be either a physical therapist or marine biologist, but I'm leaning ... A: Marine biologists do study ecology as do freshwater biologists. Both fields require extensive ... | |
| I have a question about marine biologists... | 4/1/2008 |
| Q: Wintz. I am researching to be a marine biologist, and I can't seem to find anything that will ... A: Marine biology covers a wide area. It involves not only the study of living sea creatures but the ... | |
| Questions about blood color | 3/31/2008 |
| Q: Why is old blood brown? Is brown blood oxygenated or deoxygenated? When fresh, deoxygenated blood is ... A: There is a multitude of questions here so I start with the basics. Hemoglobin is red in color. In ... | |
| cell division | 3/31/2008 |
| Q: 1)how many mitotic divisions are required to produce 512 cells from a single cell? 2)how many ... A: This is simply geometric progression. With each division the number is doubled So for question ... | |
| Ova | 3/30/2008 |
| Q: I'm having difficulty finding out some basic biology facts. I know that when girls are born, all of ... A: There are about 2000,000 immature ova at birth and around 300,000 at puberty. Don't ask me how they ... | |
| Biology | 3/27/2008 |
| Q: I'm an Asian form 4 student (equivalent to grade 10) currently studying the geotropism of plants. ... A: I was unaware of the space study regarding geotropism so I cannot answer you question but it seems ... | |
| PLEASE HELP!! | 3/26/2008 |
| Q: For a science project in my 8th grade science class I recently asked you a few questions about ... A: Hey Julie anne 1.The Ohio State University BS Ed and M Sc 2.I did study botany. I liked ... | |
| Eye Color? | 3/26/2008 |
| Q: My eyes are a reddish brown color, my mom's are the same as mine. My dad's are hazel-green. My ... A: AS you can see there is not just a single eye color like brown or blue but variations between. This ... | |
| YEASTS ABILITY TO GROW WITH DIFFERENT SUGARS | 3/26/2008 |
| Q: MY DAUGHTER IS IN 4TH GRADE AND HAS A SCIENCE FAIT PROJECT! HER PROJECT IS TO DETERMINE IF DIFFERENT ... A: This is an ambitious project for a 4th grader. What you have to measure is the rate at which yeasts ... | |
| dishes left in the sink | 3/25/2008 |
| Q: I work in a busy office where there is a large tendency of employees leaving dirty dishes in the ... A: Unwashed dishes with food left on them certainly could be a health risk especially if things like ... | |
| biochemistry | 3/25/2008 |
| Q: I am doing a research report about possible career choices and was wondering if you could give me ... A: Biochemistry is the chemical study of living organisms. It involves cellular biology and the ... | |
| Marine Biology | 3/24/2008 |
| Q: I am doing a report on possible careers choices and I was wondering if you could give me a general ... A: Marine Biology is a wide area of study. All the way from studies of algae to the marine mammals. ... | |
| genetics | 3/23/2008 |
| Q: a space probe discovers a planet inhabited by creatures that reproduce according to the same genetic ... A: You did not mention the tall short phenotypes so I cannot comment on that Parents were both AaSs ... | |
| botulism | 3/23/2008 |
| Q: My refrigerator blew a fuse the other day and it took me 14 Hrs. to catch it as I thouhgt the light ... A: The vegetables should not be a problem. If the milk is not sour you can still use it. Get rid of ... | |
| Microbiology | 3/22/2008 |
| Q: I am interested in finding out what organisms will grow on beef/chicken broth agar plates. I just ... A: You will need to Gram stain them to get a idea as to what they may be. Do a little research on what ... | |
| diaphragmatic breathing | 3/21/2008 |
| Q: How exactly does the diaphragm work? are there any special enzymes working? i need help ugh! A: It is a muscle and like all muscles it contracts. It changes the volume of the chest cavity. When ... | |
| oxygen cycle | 3/21/2008 |
| Q: what are the steps that a molecule of oxygen must take from your living room to your ckin cells? A: When you breath in the molecule passes through the bronchi to the alveoli of the lungs. It then ... | |
| Neurons | 3/21/2008 |
| Q: what is a neron and where are they located? Thank You. ANSWER: A nerve cell and they are located ... A: The nerves carry all information to and from the central nervous system. Central nervous system ... | |
| thank you very much!! | 3/20/2008 |
| Q: Describe the life history and reproduction of the common toad. Why are hens' eggs very ... A: You are the third student that I have gotten these same questions from. The first question needs a ... | |
| thanks for the help | 3/20/2008 |
| Q: Is fertilization necessary in the production of eggs? Describe the development of the rabbit ... A: Are the eggs you buy at the stire fertile? No This question is too long to answer and you can ... | |
| i dont get this | 3/19/2008 |
| Q: Why do plants and animals that live in the water have a simpler reproductive process than the ... A: First question It has to do with fertilization. All fertilization requires a liquid environment. ... | |
| help me | 3/19/2008 |
| Q: Compare the differences in parental care in the case of fish, birds, and mammals. A: Care in fish varies. Most fish lay and fertilize eggs and then the young are on their own. A few ... | |
| human reproduction | 3/16/2008 |
| Q: Does drinking Mountain Dew soda affect a boy or man's sperm count? (This was an anonymous question ... A: Mountain Dew is just another flavor of a carbonated beverage. This idea comes from some suggestion ... | |
| age of fossils | 3/16/2008 |
| Q: How the age of plant and animal fossils is determined A: There are different ways. One way is by noting their position in the layers of the Earth. A ... | |
| biology help | 3/14/2008 |
| Q: Of what advantage is the formation of many more sperm than egg cells? Explain the difference ... A: The sperms must locate the egg which is immobile and the odds of a single sperm finding it are not ... | |
| Why Oxygen | 3/14/2008 |
| Q: Oxygen is the third largest Gas in our atmosphere. Then why did all organism evolve to use Oxygen as ... A: Why questions are always tough and are in the realm of evolutionary biology but the answer lies in ... | |
| Transport in Plants | 3/14/2008 |
| Q: i need to make 5 questions about "transport in plants" topic can u give me examples of 5 different ... A: 1. What tissue transports water in vascular plants? (xylem) 2. What tissue transports food in ... | |
| human body | 3/12/2008 |
| Q: Why is it that head hair and nails keep growing but eyebrows, eyelashes, and body hair only grow to ... A: Hair does not stop growing but slows down sooner in some areas then others like eyebrows, lashes and ... | |
| Biology, enzymes | 3/11/2008 |
| Q: I understand that most enzymes are usually proteins but how exactly do they work? And how are ... A: First of all keep in mind that all enzymes are proteins. Secondly the "how" questions are difficult ... | |
| Need Explanation on a previous answer | 3/11/2008 |
| Q: 9.Which of the following situations is most usual for a dominant allele that results in severe ... A: I looked at the question again. I believe the question is ambiguous since the term "most usual" is ... | |
| sore throat | 3/11/2008 |
| Q: A patient with streptococcal sore throat takes penicillin for two days of a prescribed 10 day ... A: Studies that it takes time for an antibiotic to completely get rid of a pathogen. With strep 10 ten ... | |
| high school biology | 3/10/2008 |
| Q: Can you help me calculate the efficiency of glycolysis if the number of ATP molecules produced ... A: It is my understanding that the efficiency of glycolysis is very low at about 2%. I am not sure if ... | |
| Biology | 3/7/2008 |
| Q: Describe, with suitable diagrams how molecule of oxygen gets from the air outside the body into the ... A: I cannot create diagrams over the internet. O2 enters the lungs and alveoli through inspiration ... | |
| Becoming one flesh | 3/7/2008 |
| Q: I have a bio-sexual question that I have had a hard time finding an answer to. After sexual ... A: You have raised interesting questions and I did a little research on the topic. It is difficult to ... | |
| Becoming "one flesh" | 3/7/2008 |
| Q: I have a bio-sexual question that I have had a hard time finding an answer to. After sexual ... A: I do not know where you got the idea that semen is absorbed into the female body but it is not. It ... | |
| Microscope Question | 3/4/2008 |
| Q: I was just wondering what created the difference between a compound light and electron microscope. I ... A: Lenses are designed to magnify electromagnetic waves. With A light microscope light rays are bent by ... | |
| Human electricity | 3/3/2008 |
| Q: can you describe to me the nature of electricity in the human body, or more precisely the human ... A: The electrical patterns in the body consist of the flow of ions across the cell membrane. This is ... | |
| science | 3/3/2008 |
| Q: Explain evaporation of the lungs Explain how excretion is common to both plants and animals Thank ... A: I assume what you mean by evaporation is the loss of water through the lungs. Water leaves the ... | |
| animal urine | 3/2/2008 |
| Q: I have a 40 year old friend who lives with her 2 year old, 7 year old, and 60 year old mother. They ... A: The pet urine in itself is not a source of illness but if the people are lax in this regard then ... | |
| science fair | 3/1/2008 |
| Q: See I though it might be interesting to doa project on the magical eye, blind spots, lefties and ... A: You have a number of ideas here. I am not sure what the magical eye is. The blind spot and ... | |
| Questions about my science experiment | 3/1/2008 |
| Q: I am doing an experiment about germs in dog and human mouths. I used petri dishes, 2 for 2 dogs and ... A: Without staining these colonies I can only make a guess. The red colonies could be a species called ... | |
| I do not know how! | 3/1/2008 |
| Q: How do you cross a tryhybrid cross -BbAaRr with BbAaRr? A: Easy You have three pair of heterozygous alleles. I assume you know how to set up a punnett ... | |
| Female Dog Urine | 2/28/2008 |
| Q: I hope you can help me. I have a very happy and healthy German Shepherd Bitch. Unfortunately we ... A: There is no reason to suspect that a dog's urine is any more dangerous to a child than the child's ... | |
| The Study of Biology | 2/26/2008 |
| Q: Can you check these answers of mine, for me? ... A: Her Father is country star Billy Ray Cyrus who also plays her father on TV. They called her smiley ... | |
| Hello | 2/26/2008 |
| Q: For a project at school i need to write a short biography about an expert so could you answer these ... A: I am a biology teacher in a college Title is Adjunct Instructor Teaching biology classes Every ... | |
| The Study of Biology | 2/25/2008 |
| Q: Can you check these answers of mine, for me? ... A: The questions I did not mention are correct. The ones I listed are ones I corrected. I answered # ... | |
| The Study of Biology | 2/25/2008 |
| Q: Can you check these answers of mine, for me? ... A: Your answers are correct with these exceptions Destiny #5 is a bad question. The first law tells ... | |
| Biology: Blood | 2/25/2008 |
| Q: In which blood types, A, B, AB, or O, can the genotypes be determined without any knowledge of the ... A: The genotype for AB is AB and for O is OO. The genotype for A or B cannot be determined without a ... | |
| 8th grade science project | 2/25/2008 |
| Q: For my science experiment I will need an expert to answer a few quesions for a written report on an ... A: 1. biology teacher. Some botany with general biology 2.Degrees in biology 3.It is not hard. ... | |
| Biology | 2/22/2008 |
| Q: What are the roles membrane proteins play in multicellular organisms? Also, would you happen to ... A: There are different proteins involved with cell membranes. The enzymes necessary to maintain the ... | |
| Differences and similarities in a dogs, cats, and humans mouth. | 2/21/2008 |
| Q: I am conducting an experiment to test whether a dog, a human, or a cat has the most bacteria in ... A: The reason you are having a problem with finding information about this topic is because even though ... | |
| bioenergetics | 2/18/2008 |
| Q: Please clear my confusioncc.. We have studied in Respiration, that when one molecule of Glucose ... A: I am not sure of the figures here. I do know that 1 g of carbohydrate produces 3.75 kcal not 7.1 ... | |
| Digestion & espiration | 2/17/2008 |
| Q: how is digestion and respiration linked together? i have tried looking on wikipedia and other ... A: There are two interpretations about respiration. One involves the exchange of the gasses O2 and CO2 ... | |
| Fermentation Rates Using Yeast | 2/17/2008 |
| Q: Hintz Thank you very much for reading this message. I am planning an experiment into the rates of ... A: During alcoholic fermentation 2 molecules of three carbon pyruvate are split (with water) into 2 ... | |
| height during puberty | 2/16/2008 |
| Q: ) I know this is not the best place to ask this question but ill give it a try. If its not possible ... A: You are almost 18 and an inch short of six feet. I am not a physician or an expert on growth ... | |
| The World of Bees | 2/14/2008 |
| Q: We ,group of students from Syria ,al -Thowra City working on a project called "Bee kingdom…The ... A: 1.The body shape is basically the same with the Queen being slighter longer 2. They have a ... | |
| honey | 2/14/2008 |
| Q: how can i tell the difference between real, pure honey and fake honey which is not natural and made ... A: I have never heard of fake honey but real honey has a specific chemistry and can be analyzed. Go to ... | |
| homozygous and heterozygous | 2/14/2008 |
| Q: This is a bit odd but if a breeder wanted to determine whether the black rabbit (use of only black ... A: When considering a dominant trait there is no way to tell if the animal is carrying a recessive ... | |
| Highschool science project help | 2/14/2008 |
| Q: I'm in a science research class and I need help on finding a topic for the science fair, but it has ... A: How about a study on growing peanuts. Get some raw peanuts (google peanut seeds) Select a problem ... | |
| Frozen Ova | 2/12/2008 |
| Q: Hintz, I would like to ask if you know something about Frozen Ova. How it's done and everything. ... A: There are a number of reasons why invitro fertilization is suggested. Normally the egg is ... | |
| biology(osmosis) | 2/11/2008 |
| Q: i place a potato in water for about 20 minutes what happened in terms of water movement? A: Assuming the water was not salt water the potato would have stiffened because water entered the ... | |
| Frozen Ova | 2/11/2008 |
| Q: Hintz, I would like to ask if you know something about Frozen Ova. How it's done and everything. ... A: Go to these sites; www.pregnancy-info.net/infertility_egg_cryo.hyml www.eggfreezingcenter.com ... | |
| biology | 2/11/2008 |
| Q: What is the difference between meiosis an mitosis A: During mitosis the paired chromosomes are duplicated and the daughter cells have the diploid ... | |
| Biology (the Heart) | 2/10/2008 |
| Q: This really confused me: Suggest several reasons why there is so much fat associated with the heart. ... A: I assume that you are talking about heart problems resulting form fats. The ailment that causes ... | |
| Sex/ proteins | 2/10/2008 |
| Q: Excuse the disgustingness/ graphic nature of my question, but I'm genuinely interested by my new ... A: I guess that curiosity knows no limits. You are obviously very observent. I hesitate to answer ... | |
| Scentific Method | 2/8/2008 |
| Q: I don't really know how to answer this question and was hoping you could help me. Thanks so much, ... A: Interesting question Abby. First review the steps in the scientific method 1. State the problem ... | |
| Size | 2/6/2008 |
| Q: I wondered if you could tell me something about the affects of size upon an animal, in particular a ... A: We are as we are because that is what works best for survival. With regard to size we are subject ... | |
| requirements | 2/3/2008 |
| Q: My name is Julia and I'm 13 years old. I know I seem really young, but I have a love for marine ... A: 13 is not too young to start thinking about how you want to spend your life and I cannot think of a ... | |
| Mineral occurrence in Plants | 2/2/2008 |
| Q: How does potassium occur in an Avocado? Is the extent of this mineral determined only by soil ... A: If there is no K in the soil there will be none in the plant. it must be taken in through the root ... | |
| botany | 1/30/2008 |
| Q: Okay, I'm in the eighth grade and I have to have an expert that I can contact throughout my entire ... A: If I understand it you are varying the amounts of water and not the amount of pollutants. Is this ... | |
| botany | 1/30/2008 |
| Q: Okay, I'm in the eighth grade and I have to have an expert that I can contact throughout my entire ... A: Sounds ok Mariah. Make sure you use controls with respect to amounts of liquid, type of soil, ... | |
| human body nerves | 1/29/2008 |
| Q: i was wondering what the length of the human sciatic nerve is. i know that it is the longest and ... A: It depends upon the size of the person. It starts by the lower vetebrae and extends ot the lower ... | |
| Biology | 1/25/2008 |
| Q: How does biology affect all other sciences? How would the world function without biology? A: Biology is the study of life. If we know nothing about life processes then everything else is ... | |
| Color Graphs | 1/24/2008 |
| Q: My school requires us to enter a science project into a science fair(I'm a freshman) and i thought ... A: I have been doing a lot of thinking about this study Ibi and I am going to be honest with you. ... | |
| eye color | 1/23/2008 |
| Q: My husband is hazel eyes both parents brown. My mom brown dad very light blue all three brothers ... A: It appears that you and your husband are carrying recessive genes for light eye pigments and there ... | |
| orbital rules | 1/22/2008 |
| Q: i don't know how to find the atomic mass and the atomic number A: Look at any periodic chart (google it) The large number at the top of each element is the atomic ... | |
| biology question | 1/22/2008 |
| Q: How many variables should an experiment have? ANSWER: Three variables independent dependent ... A: It seems that you have two studies here. What is the hypothesis? Are you studying plant growth or ... | |
| biology | 1/21/2008 |
| Q: why is the 4-chambered heart called a " double pump"? A: The 4 chambered heart works with two different circulatory systems. The right two chambers (right ... | |
| Protein Digestion at Different pH levels | 1/20/2008 |
| Q: I am doing an experiment to test the effect of different pH levels on the digestion of proteins. The ... A: Apparently I am misunderstanding your procedures. I thought you were studying the effects of pH on ... | |
| Protein Digestion at different pH levels | 1/19/2008 |
| Q: I am doing an experiment to test the effect of different pH levels on the digestion of proteins. The ... A: What you are doing seems logical. What proteolitic enzyme are you using? Since protein digestion ... | |
| Biology | 1/12/2008 |
| Q: I am asking this question just out of curiosity. The cell theory states that all living things are ... A: Do not confuse thought with the ability to respond to the environment. A protist (single cell) can ... | |
| Strange white substance | 1/12/2008 |
| Q: I mentioned to a friend in the USA that I had been searching for the answer to the following mystery ... A: I have no connections in Portugal but I did some searching and discovered that there is The ... | |
| Biology | 1/12/2008 |
| Q: I am asking this question just out of curiosity. The cell theory states that all living things are ... A: Interesting question. Thought is a function of a complex central nervous system. Systems are made ... | |
| Strange white substance | 1/11/2008 |
| Q: I mentioned to a friend in the USA that I had been searching for the answer to the following mystery ... A: the Ocean between us makes it quite difficult for me to arrive at any conclusions from observing a ... | |
| HEALTH | 1/11/2008 |
| Q: WHAT ARE THE CRITERIA OF LIVING ORGANISMS ANSWER: All living things Move reproduce respond to ... A: You cannot explain all life processes by observing living organisms. Movement in plants is ... | |
| micro / macro evolution | 12/31/2007 |
| Q: Do you not distinguish between micro and macro evolution? The US National Science Foundation and ... A: Fossil evidence is no longer needed to support macroevolution. Evolutionary change is supported ... | |
| Respiration | 12/28/2007 |
| Q: If a human inhales O2 and exhales CO2 where does the carbon come from? Is there a form of 'fusion' ... A: Oxidation involves Redox reactions (oxidation/reduction) Enzymes stimulate the chemical reactions ... | |
| Respiration | 12/28/2007 |
| Q: If a human inhales O2 and exhales CO2 where does the carbon come from? Is there a form of 'fusion' ... A: We get our Carbon from eating organic compounds. Energy is then stored in chemical bonds of ... | |
| sleep&sex | 12/20/2007 |
| Q: I have two questions to ask from you.This what I knew for some time but not knowing why. 1)Is there ... A: 1.I am not sure about this but I think this might be an individual thing that not everyone ... | |
| should we | 12/19/2007 |
| Q: i have been given course work to find weather we 'should spend time in the sun' but all i have been ... A: If I understand your question you are looking for the bad effects of too much time in the sun. Is ... | |
| Desert Biome Mentor | 12/18/2007 |
| Q: I am 10 years old. I have an assignment that requires me to find a mentor. Would you be my desert ... A: I agreed to help you but I cannot do your project for you. You have asked me to do your research ... | |
| microbiology | 12/15/2007 |
| Q: could u pls help me with this question thrown by my instructor? a. why do bacteria remain unstained ... A: a)Go over again the gram staining procedure; 1. The bacteria are stained with a dark blue stain ... | |
| PLEASE HELP!!! Urgent | 12/14/2007 |
| Q: My Husband and I got married 2 years ago and had a daughter who is now 1 1/2 years old. He is of ... A: Yes it is quite possible from the information you have given. More then a single pair of Genes? ... | |
| PLEASE HELP!!! Urgent | 12/14/2007 |
| Q: My Husband and I got married 2 years ago and had a daughter who is now 1 1/2 years old. He is of ... A: This appears complicated and all I can do is make some general observations. First of all dark ... | |
| Completely stumped | 12/10/2007 |
| Q: I've read through my books chapters for information and have come up empty handed for information ... A: The synthesis of complex organic molecules is a function of living cells. Of course all synthesis ... | |
| How Taste Affects Smell | 12/9/2007 |
| Q: I know you must be busy and am pleased that you will be able to help. Here is the list of questions: ... A: 1.I am a college biology teacher 2.I teach biology classes 3. My classes involve some physiology ... | |
| should we spend time in the sun | 12/7/2007 |
| Q: Thank you A: I would present it by making some qualifying statements like how long to stay in the sun and whether ... | |
| small intestine | 12/6/2007 |
| Q: in biology class, we had a worksheet that said that we(humans) CAN NOT live without our small ... A: I am afraid that you are on the losing end Jake. The main part of the small intestine (ileum and ... | |
| biology/fungi/bread molding | 12/6/2007 |
| Q: What are your responsibilities? How does your position relate to my topic of molding/fungi in ... A: I am a college biology teacher I understand the biology of the Fungi I needed a Masters degree ... | |
| Human Health | 12/6/2007 |
| Q: I am not a Science Student, but please I like to know what could be responsible for abnormal health ... A: This is a medical problem and could be a serious one. I am a biology teacher and not a physician and ... | |
| genetics | 12/4/2007 |
| Q: what is the probable genotypes of parents in the following matings: checkered brown bird mated with ... A: This is complicated but this is how it appears to me following Mendelian ratios 1st cross Both ... | |
| biology!! | 12/3/2007 |
| Q: so my question is an essay question and i am thoroughly confused! here goes: 1. what is the route by ... A: 1.O2 is inhaled and enters the bronchi the bronchioles and into the alveoli 2. From the alveoli it ... | |
| Confusion about my test result. | 12/3/2007 |
| Q: I am currently in my final weeks of my biology course. And I am at a point where going through my ... A: 1.Muscle activity requires energy. ATP contains energu in a phosphate bond. A phosphate splits off ... | |
| Bio help | 11/26/2007 |
| Q: Here is the question i was given: A man with hemophilia (a recessive, sex-linked condition)has a ... A: Lets make a punnett square Let X = normal gene Let Xh = hemophilia Let XX = ... | |
| Biological Career | 11/24/2007 |
| Q: Hintz, I am a high school student, and I just wanted to ask you a few questions on my ... A: There are many areas of medical research that you should look into. There are jobs as technicians ... | |
| Genetic Engineering | 11/24/2007 |
| Q: Translations of Ancient Sumerian texts by scholar Zecharia Sitchin place the evolution of our ... A: I am not a follower of Sitchin nor his Ancient astronaut theories. As far as I know there is no ... | |
| hi | 11/19/2007 |
| Q: are there low tech methods of prserving sperm? im feeling really anxious cuz i donated sperm via ai ... A: I know nothing about "low tech" methods regarding sperm donation. I repeat that this should be ... | |
| hi | 11/19/2007 |
| Q: are there low tech methods of prserving sperm? im feeling really anxious cuz i donated sperm via ... A: These are strange circumstances you are talking about and I do not know exactly what you have gotten ... | |
| Vision of various species | 11/18/2007 |
| Q: I've always assumed that human vision was about average by comparison to other animals, but I ... A: Comparing color vision between humans and other animals is difficult since we cannot easily test ... | |
| Reproduction or Rabbits | 11/18/2007 |
| Q: It's supposed to be on the reproduction in a commerically grown crop or livestock. I have picked a ... A: Just like all other mammals rabbits reproduce sexually by copulation. Like cats and dogs they do ... | |
| Biology exam revsion | 11/14/2007 |
| Q: I was wondering if you could help me out, my teacher hasn't replied to my email asking for help and ... A: Active transport is movement of substances across the membrane against the concentration gradient. ... | |
| two-trait test cross | 11/14/2007 |
| Q: what is the result of a two trait testcross if one is heterozygous for two traits? A: I assume that the other is homozygous. Look at an example Flowers Let R= red and r = white ... | |
| Microbiology | 11/13/2007 |
| Q: Good Evening, I am working on identifying my unknown bacteria that I obtained from my dogs mouth. I ... A: If you have narrowed it down to the Genus that is as far as you will be able to go without special ... | |
| Biology exam revsion | 11/13/2007 |
| Q: I was wondering if you could help me out, my teacher hasn't replied to my email asking for help and ... A: Active transport is involved it moving some digested materials into the blood stream ... | |
| Can you help me again, please, Mr Hintz? | 11/13/2007 |
| Q: again! I need help with two questions. 1.- If an individual exhibits the dominant trait, do you ... A: 1. The genotype cannot be determined by observing the phenotype unless the trait is recessive since ... | |
| dog mouth vrs. human | 11/12/2007 |
| Q: i have a question regaurding the procedure for the growth of bacteria. How many days/weeks should i ... A: If you are growing bacteria on media plates it will only take 24-48 hours. The same bacteria are ... | |
| Biology revision for exams | 11/11/2007 |
| Q: Could you please explain to me the process of Osmosis, i was ill when they explained it in class. So ... A: By definition Osmosis is movement of water from an area of high concentration to an area of low ... | |
| action potential | 11/3/2007 |
| Q: For the life of me I cannot figure out the deal with action potential and the whole depolarization, ... A: It is not as complicated as it looks. It is difficult for me to explain it without making sketches ... | |
| DNA | 11/3/2007 |
| Q: You are given a polypeptide that is composed of five amino acids: methionine-valine-glutamine- ... A: Here are the codons AA Met Val Glu Lys Tyr tRNA AUG GUU GAU AAA UAU Anticod UAG ... | |
| Biology | 11/2/2007 |
| Q: Can you direct me to a website/ or book that I can read about experiments using mouthwash, soaps, ... A: Go to google and type in "Which mouthwash works best" and you can find some ideas and experiments ... | |
| cellular respiration | 11/1/2007 |
| Q: how would animal life be affected by lack of oxgen in our atmosphere, in regard to celluar ... A: You have to look at the big picture Eleanora. All energy comes from the sun and the nucleotides ... | |
| Photosynthesis/DNA BIO 1320 | 10/29/2007 |
| Q: I cant really understand even though ive read it over and over. Chemiosmosis and its role in the ... A: During the light reaction photons of light are captured. The photon knock electrons to higher orbits ... | |
| cellular respiration | 10/21/2007 |
| Q: Function of cellular respiration, how many ATP's produced,important processes of Glycolysis,Kreb ... A: Respiration is necessary to produce energy for life functions; Glycolysis occurs in the cytoplasm ... | |
| Investigatory Project(I.P) | 10/20/2007 |
| Q: Sir, I would like to do an IP in Botany.I prefer it to be simple one on a relevant accessible topic ... A: I had been getting some questions recently regarding plant responses to external stimuli. The ... | |
| cells/ organizms | 10/19/2007 |
| Q: How would you describe interpendence of living organisms? A: There are three unofficial Laws of Ecology that I teach my students; Everything has to go ... | |
| Biology | 10/18/2007 |
| Q: 1. what component is present in every part of a loop, such as one that involves protiens producing ... A: I have a strict policy about not answering test or homework questions. After you answer these ... | |
| infestation of itchy insects | 10/17/2007 |
| Q: Me and my wife are having something crawl on us that cannot be seen but it does bite without leaving ... A: It is next to impossible to identify something you cannot see. Do you see anything like small specks ... | |
| The senses | 10/15/2007 |
| Q: Summarize the types of messages the senses recieve? When you have a cold, why is it hard to taste ... A: It depends upon the sense. With vision the eye receives light waves and with hearing the ears ... | |
| Microbiology | 10/12/2007 |
| Q: I am taking microbiology and passing by the skin of my teeth. I have questions in my lab manual ... A: When gram stained red rods would be gram - rods and purple cocci would be gram + The pneumonia ... | |
| memory | 10/12/2007 |
| Q: I'm 47 years old and I'm in my first year of college. I would like to know if there is a good way to ... A: Good for you Jim. Unfortunately I am not an expert in this area. There are quite a few tricks that ... | |
| science | 10/11/2007 |
| Q: how could photosynthesis and cellular respiratory be considered complementary processes A: They are opposite chemical processes. Chemical changes that are reversible. During photosynthesis ... | |
| human body | 10/11/2007 |
| Q: A discover magazine web article states that 90 percent of the cells in the human body is not human ... A: I believe this is a generalization. The author is considering other microbes as well as bacteria ... | |
| TickleMe Plants | 10/7/2007 |
| Q: How come my kids TickleMe plants moves when I tickle them and even sleep at night or when i place ... A: I am unsure of your background in biochemistry and plant anatomy so I simplified the answer ... | |
| biology | 10/5/2007 |
| Q: How does the density of ice compare with the density of water? Use specific values and proper units ... A: Density is based upon the density of water and water is 1 gram per cubic cm. Water reaches maximun ... | |
| forehead | 10/2/2007 |
| Q: Could you tell me, where does the forehead start from? I have this link ... A: The usual definition is that the forehead is the part of the face above the eyes so the keyword ... | |
| bio | 10/2/2007 |
| Q: can u please help me understand the electron flow in light reactions of photosythesis A: This is difficult to answer Laura without diagrams and understanding what you already know. Suffice ... | |
| microbiology | 10/1/2007 |
| Q: My question is probably not like many that you have received before. I am 35 years old and ... A: First of all let me congratulate you for making the effort to enter a new profession. I am teaching ... | |
| college ap | 9/29/2007 |
| Q: i am having trouble with atomic weight what is it and how do i get? i have a chart but i am ... A: The atomic weight (really the mass) is the combined mass of the protons and neutrons. Maybe your ... | |
| biology (asap plz) | 9/28/2007 |
| Q: A person carrying a heavy bag normally finds the impact of the weight differently if he carries it ... A: The perception of the weight depends upon different factors such as the distribution of the weight ... | |
| Surface area to volume ratio | 9/26/2007 |
| Q: Please can you explain how to calculate surface area to volume ratio and give an example for me to ... A: Correct Let me give you one more example If we use a side of 10 cm SA is 10 x 10 x 6 = 6000 ... | |
| biology | 9/25/2007 |
| Q: Give examples that would demonstrate the differences between the terms niche and habitat. A: The habitat is where an organism lives and the niche is the relationship between the organism and ... | |
| Biology | 9/23/2007 |
| Q: I will have Associate degree in Biology in 2008, and I am planning to go for Bachelors' degree. But ... A: I am not an expert in job counseling but there are some things you could do in the areas of ... | |
| bio | 9/20/2007 |
| Q: what is the connection between telomerase and aging A: You have been asking me homework questions that I usually do not answer. Furthermore these ... | |
| biology | 9/13/2007 |
| Q: how many neutrons are in 14c? i don't know how you figure it out thanks. ANSWER: The proton number ... A: Read my answer again. There are 8 nentrons in C14. Carbon always has 6 protons. C12 6 +6 = 12 ... | |
| biology | 9/13/2007 |
| Q: how many neutrons are in 14c? i don't know how you figure it out thanks. A: The proton number in C is 6 The mass of most Carbon is 12 which means it has 6 P and 6 N Hi laura ... | |
| thanks so much for everthing. | 9/12/2007 |
| Q: here are some more to check. please check carefully, because from liek 11 down i didn't understand ... A: 9. Air sacs hold a resavoir of oxygen. Runner would have a greater supply 10. Biological- Will the ... | |
| a few questions. | 9/12/2007 |
| Q: the gametes of an alligator contain 16 chromosomes. all the other cells in an alligator contain ... A: You seem to be doing fine. All you answered were correct. The question about the pea plants: The ... | |
| Body Hair | 9/11/2007 |
| Q: Do humans have different kinds of hair? Why does our body hair (arms, legs) not grow as long as our ... A: Yes all hair is not the same. It varies in color texture and length. Its length depends upon the ... | |
| a few questions. | 9/10/2007 |
| Q: the gametes of an alligator contain 16 chromosomes. all the other cells in an alligator contain ... A: First 5 are correct #6 should be b 7 and 8 are correct 9 I see no flaw but this question puzzles me ... | |
| biology | 9/9/2007 |
| Q: please briefly explain the citric acid cycle. is a lot of atp made during this process? ANSWER: ... A: It looks like you are asking homework questions Laura. I am willing to help you understand ... | |
| Bees infesting and Adobe wall | 9/4/2007 |
| Q: I am a historic Preservation Architect and I have an Adobe building that has a host of "bees" ... A: I have looked at the photos and cannot see any adult bees. There is a Genus of bees called ... | |
| Electricity | 9/3/2007 |
| Q: I need to know if it is possible to harness electricity in the palm of my hand. If you know who ... A: No,it is not. Simply because there is no electron flow or electric current in the body. There are ... | |
| zoology | 9/3/2007 |
| Q: I'm in the 7th grade and have a few questions on my project. I have a worksheet that asks for things ... A: It appears Alexis that you have not been given the Scientific method. Her is what you do. Your ... | |
| Dreams | 9/2/2007 |
| Q: On average a person will sleep maybe 6 hours a night. If this is the case, how do we cram such long ... A: There is still a lot of mystery about dreaming and we really do not know exactly the brain processes ... | |
| How much biomass is on the planet? | 8/31/2007 |
| Q: I need to know 2 approximate numbers. First, I need to know how many tons of LIVING biomass is on ... A: I have researched this question with no results. I am not sure that it is possible to even get a ... | |
| single cells and zygotes | 8/29/2007 |
| Q: you recently answered a question from another person in which he (Doyle)asked you if gestating ... A: A zygote is destined to develop into an individual of the species. If the egg has been fertilized ... | |
| single cells from multicellular organisms. | 8/27/2007 |
| Q: I was wondering if you can answer this question for me. A friend of mine insists that a single cell ... A: Tecbnically the first part is correct since one definition of an organism is a living thing which a ... | |
| species classification | 8/26/2007 |
| Q: Mr. Hintz: Is there, to the best of your knowledge, any reason (excluding radical mutations) for ... A: As far as I know the classification of immature organisms is pretty forthright and established. In ... | |
| Parallel; Evolution? | 8/25/2007 |
| Q: One theory has always stated that silicon lifeforms could exist just as often as carbon-based ... A: It is my opinion that the physical,chemical and mathematical Laws of the universe are fixed and ... | |
| question | 8/24/2007 |
| Q: how are you? I was wondering if you can provide your opionion. I am writing a essay on this topic ... A: I believe that such laws should be passed. Vaccinations for childhood diseases are already required ... | |
| Acorn Growth | 8/20/2007 |
| Q: This past Spring in Pennsylvania was warm and dry with the "drought" lasting until the second week ... A: Last week I was in Kentucky visiting a friend. He has a lot of oaks and they were not producing ... | |
| Tundra | 8/17/2007 |
| Q: Can you just tell me a little about the weather in the Arctic and Alpine Tundras? Thank You! A: Ther is not alot of difference in weather between arctic and alpine tundra. Bout are cvery cold in ... | |
| Desert biome | 8/14/2007 |
| Q: my name is Tyler Hayes. Now I take my schoolwork very seriously and need to get an edge on this ... A: Hey Tyler I take helping students seriously. You picked a goody. Frankly I would have chosen the ... | |
| Question about plant respiaration | 8/14/2007 |
| Q: when 6 molecules of carbon dioxide mixes with 6 molecules of water, it produces one molecule of ... A: What you have stated is photosynthesis not respiration. Here are the equations 6H2O + ... | |
| biology questions | 8/13/2007 |
| Q: 1. A. Explain how a light touch stimulates a nerve impulse.B. How does the impulse travel to the ... A: Special skin receptors are sensitive to pressure (touch) When your are touched a sensory nerve sends ... | |
| biology | 8/8/2007 |
| Q: 1. ostriches cannot fly. Would you expect them to have more down feathers or more contour feathers? ... A: 1. Down feathers. Contour feathers are flight feathers. 2. It is tough to answer the way the ... | |
| timerates of biological processes | 8/8/2007 |
| Q: I am wondering how long different biological (and chemical) processes take? I'm looking for a ... A: Of course time is relative and I can only speak in generalizations. Decomposition of plant and ... | |
| Gram Stain Question. | 7/16/2007 |
| Q: If I omit the alcohol step in a gram stain for a gram negative bacteria, would I end up wih a purple ... A: The alcohol is used to decolorize the bacteria.Therefore it would stay purple. If you do not ... | |
| onions | 7/13/2007 |
| Q: Why do onions turn clearish when you cook them. Do they have really thin cell walls or is there ... A: Interesting question that I have never thought of before. Yes the cell walls in an onion are very ... | |
| goosebumps | 7/11/2007 |
| Q: i have read information on goosebumps, i know that adrenaline and fear and cold causes it, but alot ... A: I am afraid that you have me stymied on this one. I have never experienced this phenomenon but the ... | |
| Size of organisms | 7/10/2007 |
| Q: Can you please explain why different kinds of living thing grow to different size ranges? For ... A: Size and growth is under control of the DNA. I realize that this is not much of an answer unless ... | |
| biology | 7/10/2007 |
| Q: (1) What are the tiny spheres inside the larger sphere of Volvox? How dou you suppose they get out? ... A: These appear to be homework questions. I do not usually answer these but I will give some brief ... | |
| Marine Biology | 7/3/2007 |
| Q: I was curious to know what degree I should be interested in if I wanted to be involved in the ... A: Hey Elise; We are neighbors. I live in Wickliffe Ohio and teach at Lakeland College. Where do you ... | |
| resources | 7/3/2007 |
| Q: I'm wondering if you can name some great books on biology for non-biologists. There are two types ... A: I teach a course in biology for non-majors and use one of the best books that I have found so far. ... | |
| biology | 7/3/2007 |
| Q: what is the difference between a sugar and a polysaccharide A: All Sugars are saccharides, the simplest being monosaccharides like glucose (C6H12O6) Glucose is the ... | |
| Marine Biology | 7/1/2007 |
| Q: I was curious to know what degree I should be interested in if I wanted to be involved in the ... A: Working with animals will probably have much to do with getting into college but it will help you in ... | |
| biology | 6/30/2007 |
| Q: Why is the phenomenon of global warming termed the "greenhouse effect"? How does carbon dioxide ... A: Think about being in a greenhouse. It is hot and humid. Normally a large among of the energy of the ... | |
| bio | 6/28/2007 |
| Q: sir what do we mean by alkaline? i have read that blood is slightly alkaline and lymph is alkaline ... A: This refers to the hydrogen ion concentration of a substance or the pH. Hydrogen consists of a ... | |
| Biology | 6/28/2007 |
| Q: Suppose you place two celery stalks with cut ends in a solution of red food coloring and remove all ... A: I would expect he dye to travel further in the leafed stalk. This would be due to transpiration ... | |
| Marine Biology | 6/25/2007 |
| Q: I was curious to know what degree I should be interested in if I wanted to be involved in the ... A: Congratulations Not too many 15 year olds have a good plan for the future. For what you want to ... | |
| ecology | 6/20/2007 |
| Q: why don't food chains have 20 trophic levels? A: Interesting question abreshia. The law of entropy tells us that with any change of energy from one ... | |
| pest control | 6/18/2007 |
| Q: Tonight, I found hundreds to thousands of earwigs underneath the leaves of my vegetables in my ... A: Earwigs are common in gardens. There are a number of things you can do. First of all do not use ... | |
| deoxyrebonucleic acid | 6/10/2007 |
| Q: I'm a 2nd year highschool student,our teacher told us that we'll have an investigatory project.I ... A: Wow! This is a huge question and I cannot answer it or explain it in a simple way. It is nucleic ... | |
| Hi can you help me understand Biology | 6/5/2007 |
| Q: why does Biology divided into some branches? Like Zoology and Botany... And what is the importance ... A: Biology is the study of life, of ourselves. It is important that we understand everything we can ... | |
| jasmonate release in plants | 6/5/2007 |
| Q: I wanted to know...some scientists, such as Dr. Backster and his "lie-detector", have claimed that ... A: The evidence of this compound has been established. In some plants an injury causes a release of ... | |
| Testosteroone and aggression | 6/4/2007 |
| Q: i'm Scott, Pleased to meet you. My question is that is high levels of testosterone linked to ... A: First of all I must tell you that I am not an expert on aggression in mammals. I did a little ... | |
| bio question | 6/3/2007 |
| Q: i have 2 questions Describe the symbiosis theory of development. and describe the defference between ... A: My answer is the same. This idea has to do with development of eukaryotic species. Basically the ... | |
| baby hair and eye colour | 6/3/2007 |
| Q: can you tell me what hair and eye colour my baby is likely to have ? i have dark blonde hair and ... A: All I can do is give you some odds Bonnie You are carrying genes for light hair and eyes. The ... | |
| bio question | 6/3/2007 |
| Q: i have 2 questions Describe the symbiosis theory of development. and describe the defference between ... A: I assume the first question refers to biosymbiosis to explain speciation. There is a whole book on ... | |
| biology question | 5/29/2007 |
| Q: Why is photosynthesis only about 1% efficient in converting the energy in sunlight onto stored ... A: I asked about the 1% because it is not correct. The efficiency of photosynthesis is around 5% not ... | |
| biology question | 5/29/2007 |
| Q: Why is photosynthesis only about 1% efficient in converting the energy in sunlight onto stored ... A: The Law of entropy states that when there is a change of energy from one form to another there is a ... | |
| Biology II | 5/26/2007 |
| Q: Which of the following statements about species ,as defined by the biological species ... A: I believe, homework questions I have taken a stab at some of them. I usually ask students with ... | |
| Mouth bacteria of humans, dogs, cats | 5/23/2007 |
| Q: My 5th grade son is doing his science fair project comparing who has more bacteria between human, ... A: The reasons behind the different numbers can be a lot of things. For example what did each eat last ... | |
| Cell Respiration and Photosynthesis | 5/22/2007 |
| Q: Can you please help me figure out how ATP relates to photosynthesis and cell respiration? Thank you ... A: ATP (adenosine triphosphate) is the site for energy storage and the energy source for metabolic ... | |
| Breathing | 5/19/2007 |
| Q: Im in year 8 and i have been set homewok kthat i cant do. The question is... Devise experiments to ... A: You are correct that limewater can be used. Limewater is calcium hydroxide Ca(OH)2. It is normally ... | |
| Investigatory project | 5/14/2007 |
| Q: I am a science student of class XI my subjects are PCB. As our home-work we are asked to make an ... A: With regard to disease I would suggest looking into Prions, the proteins that cause mad cow disease. ... | |
| Dog Evolution | 5/13/2007 |
| Q: What most facinates you about the evolution of the domesticated dogs today? Also, What are possible ... A: Since answering the last time, I did a little more investigation. Most lists of carnivore include a ... | |
| Evolution puzzle | 5/13/2007 |
| Q: There is an aspect of evolution that is puzzling me. Am I right in thinking that evolution works by ... A: In my opinion you are quite correct in questioning the role of random mutation as the guiding point ... | |
| DNA | 5/11/2007 |
| Q: AT transcription only one of the strand is involde.Why is their a nedd for a double helix?Wouldn't a ... A: I said I could not give you a satisfactory answer. This is a why question and why questions can ... | |
| forensics | 5/10/2007 |
| Q: Could the bones of a child less than one year old eventually disintegrate leaving no trace? I'm ... A: Organic materials will degrade faster in wet conditions. Certainly people have dug up human bones ... | |
| bio question | 5/9/2007 |
| Q: for a bio assignment i'm supposed to give the water balance maintenence for a fish,amphibian,a ... A: I do not know exactly what the teacher means either Raegan, but I suspect she is talking about how ... | |
| Dog Evolution | 5/9/2007 |
| Q: What most facinates you about the evolution of the domesticated dogs today? Also, What are possible ... A: The explanation for the wide variety of dogs (and all domestic animals) is simple. They did not ... | |
| Wild salmon vs. cattle ranch cow | 5/8/2007 |
| Q: How many myotomes does a salmon use to swim upstream? And how many muscles does a cow use to stand ... A: To be honest Karen I have no idea how to answer this. I would suspect that a swimming fish uses all ... | |
| Senses | 5/7/2007 |
| Q: 1types of messages the senses receive. 2.When you have cold, why it is difficult to taste food? ... A: 1. sounds,light,chemical smells and tastes, touch,heat 2. You lose the sense of flavor not taste ... | |
| biology | 5/6/2007 |
| Q: what is the ecological importance of decomposer organisms? Where does the heat that compost heaps ... A: Decomposers recycle organic material. If there were no decomposers we would be up to our necks in ... | |
| Evolutionary adaptations | 5/4/2007 |
| Q: I have to find two organisms for each adaptation and explain the adaptation has been beneficial to ... A: There is a lot to answer here and this looks like homework which I do not do. Here is what I will ... | |
| Biology and Producing materials | 5/3/2007 |
| Q: I was wondering what the term, "organic" really means? And also with some genetic engineering could ... A: Organic chemistry involves carbon containing compounds so we associate organics with life. It is ... | |
| Speciation of dogs and cats | 5/2/2007 |
| Q: Why can one find many species of dogs as compared to those of cats? Is that related to the ... A: If you are talking about domestic pets there is only a single species of dog (As familiaris) and ... | |
| biology | 5/1/2007 |
| Q: 1.Is it true that all protozoans are multicellular? 2.Does fungi feed by digesting material outside ... A: 1. No Protozoans are unicellular 2.yes 3.Bacteria have cell organelles: viruses do not Bacteria ... | |
| biology questions | 5/1/2007 |
| Q: 1.List 4 possible genotypes and phenotypes from this cross using Rt, rt,rT? 2. Which of these is an ... A: I cannot answer the first question because I need to know what is being crossed.(Rt x rt? or rT x ... | |
| body temp & perception | 4/29/2007 |
| Q: Hintz, First, thank you for taking the time to be a resource for those of us with burning ... A: Sweating is a part of thermoregulation. When body temperature increases water is lost through the ... | |
| whose mouth is cleaner | 4/26/2007 |
| Q: You said something about noting colonies etc. How should we go about doing this? Noting different ... A: Each species of bacterium has some observable characteristics regarding the colony. here are some ... | |
| earthworms | 4/25/2007 |
| Q: I am doing a build a bin for earthworms and i was wondering.. *How earthworms absorb nutrients *How ... A: They take in the soil through the mouth and digest the organic materials as it passes through the ... | |
| integumentary question.. | 4/24/2007 |
| Q: I would like to know why do we have fingernails. I have been searching for quite some time but cant ... A: Fingernails are claws. All mammals with fingers or toes have claws. They are evolutionary and have ... | |
| Baby hair and eye colour | 4/22/2007 |
| Q: I am 25 weeks pregnant and am interested to know what colour hair and eyes my baby is likely to ... A: In most cases coming up with any predictions is tricky. In your case dark hair and eyes seem to be ... | |
| Biology | 4/17/2007 |
| Q: When a brown bear eats a salmon, does the bear acquire all the energy contained in the body of the ... A: The bear can only recover a fraction of the energy from the fish. The second law tells us that with ... | |
| Circulatory Systems | 4/8/2007 |
| Q: In what way is the circulatory system of: the human, the fish and the worm, designed to suit their ... A: Thermoregulation requires a greater metabolic rate and therefore more O2.. Fish and worms need less ... | |
| biology 1406 | 4/7/2007 |
| Q: Explain the seperation of pigments by chromatography. Why does this seperation occur? A: Pigments separate because they have different molecular weights. I assume you have separated plant ... | |
| Biology | 4/6/2007 |
| Q: I was just wondering, would you know what kind of bacteria I might have grown in my petri dishes? ... A: There is no way I can identify these bacteria Julianne without more information. I would have to ... | |
| Scientific evidence proving the theory of evoution to be a scientific fact. | 4/5/2007 |
| Q: My friends grandmother used to have a pet donkey or mule (I cant remember which one) in a little ... A: I am afraid Brad that you are not aware of the nature of the creation-evolution debate. There are ... | |
| Scientific evidence proving the theory of evoution to be a scientific fact. | 4/5/2007 |
| Q: My friends grandmother used to have a pet donkey or mule (I cant remember which one) in a little ... A: Eohippus is considered as evidence of evolution along with other fossil records. The debate ... | |
| Scientific evidence proving the theory of evoution to be a scientific fact. | 4/4/2007 |
| Q: My friends grandmother used to have a pet donkey or mule (I cant remember which one) in a little ... A: I was unaware that such holes existed in the heads of mules. Vestigial organs are considered as ... | |
| Is having red hair a recessive gene? | 4/3/2007 |
| Q: I am a female with reddish brown hair with green eyes and freckles. I am of mixed race half white ... A: Yes! Red hair is recessive but all pigments involve multiple genes and not a single pair. And the ... | |
| Punnet Square Problem | 4/3/2007 |
| Q: I have to create a 32x32 punnet square that have 1024 solutions. I cant figure out what the 32 ... A: It is hard to believe anybody gave you a problem involving six traits. However it appears you were ... | |
| 5th grade science project - whose mouth is cleaner | 4/3/2007 |
| Q: My son is in 5th grade and is doing a science project. He chose "whose mouth has the most bacteria? ... A: I get a lot oof questions about the germ mouth projects. You must use the scientific method and the ... | |
| Binary Fission | 4/2/2007 |
| Q: If we begin with one bacterium that could divide every 20 minutes what would be the mass of the ... A: I just do not have it in me to do this calculation nor do I have the needed formuli. Sorry Lauren ... | |
| biology | 3/31/2007 |
| Q: I have a test in biology coming up, and I have difficulties understanding some basics: ... A: Transcription involves the making of RNA from the DNA template Translation is the synthesis of the ... | |
| bacterial content of human mouth vs cat/dog/snake | 3/31/2007 |
| Q: My son is doing a science fair project on the bacterial content of the human, cat, dog, and snake ... A: I am glad to see there is a nurse supervising as I worry when young people grow bacteria on plates. ... | |
| bacterial content of human mouth vs cat/dog/snake | 3/31/2007 |
| Q: My son is doing a science fair project on the bacterial content of the human, cat, dog, and snake ... A: It appears that you have done a lot of checking regarding the bacterial content in mouths. Is this ... | |
| sclera | 3/28/2007 |
| Q: Why mammals have whitesclera? Its because collagen and elastic fibers? Why have some mamals larger ... A: You are asking why questions and why questions are difficult to answer. I sometimes shock my ... | |
| Biology | 3/25/2007 |
| Q: Why are there so many villi and air sacs in the respritory system? A: The air sacs (alveoli) carry out diffusion of gases and the important thing is surface area. If the ... | |
| Biology | 3/24/2007 |
| Q: In sexual reproduction, a line of genes on a DNA chain from a mother is paired with a matching chain ... A: This is the first time you have come to me at allexperts. You should know that I do not answer test ... | |
| Urban Myth question | 3/20/2007 |
| Q: I've twice heard a story about how the Earth supposedly had far more oxygen in the air in the ... A: I have never heard of this idea and I doubt that it is true. Before green plants the Earth had no ... | |
| biology fieldwork | 3/20/2007 |
| Q: I just completed my A2 fieldwork on the decrease in the population density of Mayflies with an ... A: I did not realize that you were working with stream mayflies in Thailand but I assume that you are ... | |
| biology fieldwork | 3/19/2007 |
| Q: I just completed my A2 fieldwork on the decrease in the population density of Mayflies with an ... A: I believe that you are correct in assuming a lower O2 at greater depths but I am not sure this is ... | |
| Invertebrates | 3/18/2007 |
| Q: How is the presence or absence of cephalization suitable to the way animal acquires food? ... A: Sorry for the late answer but I was on vacation. It should have been noted at allexperts ... | |
| Genetics versus Enviromental / Nature vs. Nurture | 3/14/2007 |
| Q: Does a particular environment, prior to the development to genes, play any role what-so-ever on the ... A: LaMarck believed that acquired characteristics (brought about by environment) could be passed on ... | |
| Surface area | 3/13/2007 |
| Q: What might be the disadvantage of having a large volume? A: Assuming you are thinking about cell volumes: There is a ratio between cell volume and surface area. ... | |
| blood groups | 3/12/2007 |
| Q: 1. what is antigen ? 2. what is antibody ? 3. what is their role ? 4. also explain blood ... A: Sorry for the late response sulaman but I was on vacation 1. Antigen stimulate the production of ... | |
| biology | 3/6/2007 |
| Q: Can matter be reused in the law of conservation? If not can it be conserved some how or is it ... A: The Ist Law, the Law of Conservation of matter and energy tells us that matter cannot be created nor ... | |
| Biodiversity | 3/6/2007 |
| Q: What is biodiversity? Explain why biodiversity is important? A: Diverse refers to many different forms and bio means life. Biodiversity refers to the number of ... | |
| large intestine | 3/2/2007 |
| Q: explain osmosis in terms of what goes on inside the large intestine ,please. i really need a ... A: Osmosis is not a complicated thing. It is merely the passive diffusion of water across ... | |
| Puberty | 3/1/2007 |
| Q: The text above is a follow-up to ... -----Question----- I am in desperate need of help. Iam 15 ... A: You have some pubic hair, you get erections and you are attracted to girls. The last question is ... | |
| follow up evolution | 2/28/2007 |
| Q: im sorry i couldnt get back to you. whenever i clicked the link to ask a followup i got a message ... A: Glad you got back to me feiv; I get a lot of questions and allexperts poses some limits so if it ... | |
| fats/proteins | 2/28/2007 |
| Q: before fats/proteins can be used as a fuel in respiration, what must happen? broken down into ... A: These compounds are not converted to glucose or broken down into CO2 although is a final byproduct ... | |
| evolution | 2/27/2007 |
| Q: for evolution to occur, there must have been a tremendous degree of variations of features in ... A: In some cases here you have answered your own question. For example: Why are there no purple bees? ... | |
| human brain | 2/27/2007 |
| Q: what are the difference between a genius and an ordinary person? Please include if it deals with the ... A: No one has yet made a good argument to distinguish between the two.The main problem is that there is ... | |
| question | 2/26/2007 |
| Q: How soon after fertilization could a woman know she is pregnant? A: There is some mystery about this. I have heard some women (including my wife) claim that they know ... | |
| A dog's mouth. | 2/24/2007 |
| Q: Is a dog's mouth cleaner than a human's mouth? A: I get this question a lot. The problem is that "cleaner" is a relative term. Does a dogs mouth ... | |
| Scoliosis (spelling) | 2/23/2007 |
| Q: I have to do a science project for our upcoming science fair. Is scoliosis a form of science since ... A: Scoliosois is curvature of the spine. Effects on the body depend upon the degree of curvature. ... | |
| biology | 2/22/2007 |
| Q: what is "a shift in allele frequencies in a population due to chance"?? A: Heredity is based upon chance. What genes are passed on and which ones are not depends upon which ... | |
| Agar Plates | 2/22/2007 |
| Q: One more quickI have the plates in the oven with the light on with no heat. They are upside down. A ... A: It is correct to keep the plates upside down.The object of incubating the plates this way is to ... | |
| Plants | 2/22/2007 |
| Q: Its me again! How does potassium cyanide affects the uptake of ions in plants. And how could you ... A: I have never carried out an experiment using KCN on plants so I do not know what it does but it ... | |
| Human eyes | 2/21/2007 |
| Q: And this scale of iris have any biological reason? It depends on something?Why have humans white ... A: Your question lies in the realm of evolutionary biology. Why questions are tough to answer. All ... | |
| ADP | 2/20/2007 |
| Q: How can ADP be 'recycled' to form ATP again? And how do proteins in your cells access the energy ... A: The cells contain plenty of ATP and ADP and there is also available phosphates. Under enzyme ... | |
| Drowning in Hot Water vs. Cold Water | 2/18/2007 |
| Q: Would a person drown faster in a pond during the summer or the winter? A: In the summer. People that have been taken from freezing water are more likely to be revived ... | |
| Agar Plates | 2/17/2007 |
| Q: I am doing a science project, and I am testing to see which area of my school has more bacteria. I ... A: Bacteria row best at 3.5 degees C. I you do not have an incubator keep the plats in a warm place or ... | |
| biology | 2/16/2007 |
| Q: Please describe the pathway of sperm from the testes and the pathway of the ovum from the ovary ... A: Sperm; moves from testes through seminiferous tubules to urethra. To vagina through cervix into ... | |
| my science fair project | 2/16/2007 |
| Q: My hypothesis is:If monocular vision and binocular vision were tested for depth perception, then ... A: Sounds like an interesting topic Cat. During your research part see if you can find out information ... | |
| biology | 2/15/2007 |
| Q: hey i had some questions to ask and i hope u can help me with that - why do a persons eye appear to ... A: Hey Nazeen I am not sure about the first question. There are a lot of causes for sunken eyes; ... | |
| Bear Hibernation | 2/14/2007 |
| Q: I've returned with more questions about bear hibernation. More specifically, I'm interested in ... A: I cannot answer all of these questions about the physiology of the bear. I can tell you that bears ... | |
| my science fair project | 2/14/2007 |
| Q: Can you explain peripheral vision? I do not understand how it works.Thank you. ~Cat A: Light passes into the eye not only directly from the front but also from the sides and strikes the ... | |
| DNA | 2/13/2007 |
| Q: I had a quick question about DNA, if you wouldn't mind answering. Everybody knows about cell units, ... A: It appears that you are questioning the evolutionary process in the development of DNA and ... | |
| biology | 2/13/2007 |
| Q: I need to know the answer to Why might emigration and immigration result in variation within a ... A: The total makeup of the DNA in a population is known as the Gene pool. Variations depend upon ... | |
| Bean Infusions | 2/11/2007 |
| Q: I am curious why putting beans in water leads to a growth of bacteria. It seems strange to me. Is ... A: It does seem remarkable doesn't it? Anton Leeuwenhoek the inventor of the microscope made a bean ... | |
| investigatory project | 2/10/2007 |
| Q: . so your a teacher in biology..do you gave projects to your students? a investigatory project? our ... A: Over the years I have worked with many students in scientific problem solving. Before I can help ... | |
| passive transport | 2/9/2007 |
| Q: Can you please explain to me the forces behind active transport and perhaps an example of this? A: Your subject is passive transport and your question is active transport so I will discuss both. ... | |
| E. coli growth problem | 2/7/2007 |
| Q: I am trying to grow E. coli K-12 for my science project but it's not growing. Here is my procedure: ... A: There are two ideas that come to mind. One is that the broth culture was not viable. The other is ... | |
| Second Law Thermodynamics/Entropy | 2/7/2007 |
| Q: If the second law (entrophy) is true, then how can evolution occur? Biologists insist that life ... A: Good question Chastity. The Law of entropy states that with any change of energy from one form to ... | |
| question | 2/4/2007 |
| Q: give me types of biological interactions and examples A: This is a pretty broad topic Edu C. Consider trophic relationships and food webs. The predator ... | |
| cells | 2/1/2007 |
| Q: Hintz Can you tell me how to count cells in the human body. i need it because i need to learn how ... A: It depends upon what kind of cells you are counting but When you are counting cells you are working ... | |
| Microbiology | 1/31/2007 |
| Q: My question is this: Since you can't identify bacteria from a Gram stain, why might a physician ... A: Gram positive and gram negative bacteria react differently to different antibiotics. Gram positives ... | |
| killing bacteria | 1/30/2007 |
| Q: Well, I am growing E. coli K12 for 24 hours and then putting different types of bandaids on the ... A: I am having problems with this method Kristin. After 24 hours the colonies will have grown. Any ... | |
| killing bacteria | 1/29/2007 |
| Q: "I am growing E.coli K-12 on nutrient agar and then trying multiple ways to kill it. How would I ... A: i assume you are treating the plates before the growth of the bacteria or at least you should be. ... | |
| Late Blooming Brains | 1/29/2007 |
| Q: I recently read an offhanded mention that human brains continue to develop new physical structures ... A: The original statement is correct but all growth does not stop until death. Additional growth has ... | |
| Blood circulation | 1/29/2007 |
| Q: We saw a sign at the Bodies exhibit that said that each drop of blood in an adult human goes through ... A: It depends a lot upon the heart rate but when we consider an adult at rest the flow rate is about ... | |
| Polygamy and Incest | 1/27/2007 |
| Q: Do polygamy and incest have a biological/genetic cause in humans, or are they 100% choice? A: Very interesting question Fred and I am afraid that the jury is still out on this one. First: ... | |
| hypothesis | 1/23/2007 |
| Q: what does the word hypothesis mean nad can you give me an example. I would also like to knoa what a ... A: A hypothesis is an educated guess. Suppose my Problem was what type of fertilizer makes a plant ... | |
| unicellular creatures | 1/21/2007 |
| Q: Why is it not possible to really have a unicellular organism big enough to engulf small children and ... A: This is a good question. A unicellular organism that could engulf a large animal would in itself ... | |
| what define sense of taste? | 1/20/2007 |
| Q: What define the flavor we taste in the tongue? assuming we all taste the same the same flavour as ... A: Taste and flavor are not the same thing. There are four different chemical receptors on the tongue ... | |
| Biology | 1/20/2007 |
| Q: The text above is a follow-up to ... -----Question----- good day, sir. I am an udergraduate and ... A: There are some studies out about periwinkle and treatments for leukemia that I could send to you but ... | |
| beginning biology question | 1/15/2007 |
| Q: I do not understand the difference between independent variables, dependent variables and control ... A: Consider this hypothesis: A certain fertilizes makes bean plants grow better. The independent ... | |
| need help asap please! | 1/10/2007 |
| Q: 1.what is the cellular process that needs energy from ATP? 2.how does ATP store? 3.how can ADP be ... A: 1. All cell activities except simple diffusion utilize energy but I think you are asking about ... | |
| Science Project | 1/9/2007 |
| Q: I am a ninth grader and I am doing an experiment on the effect of oregano oil on the growth of ... A: You are introducing too many variables here. You are using two different organisms and varying ... | |
| help!! | 1/9/2007 |
| Q: how can i carry out a quantative survey of the plant speciesin a local habitat A: The first thing you must do is determine the total area involved. Measure the area of study in ... | |
| Biology/chemistry | 1/5/2007 |
| Q: I am an 8th grade student doing a science project called do household products effect the ... A: The problem with this study Nicole is that you are affecting the environment of the plant only by ... | |
| Pentahybrid Punnett Square | 1/5/2007 |
| Q: For my biology extra credit project I was assigned to create a pentahybrid punnett square. I ... A: According to my calculations you will need a punnet square with 20 gametes on a side for 400 squares ... | |
| Biology/chemistry | 1/5/2007 |
| Q: I am an 8th grade student doing a science project called do household products effect the ... A: You have two different problems to solve here. One is how these products affect plants and the ... | |
| Eye and Hair Colour of Baby | 1/4/2007 |
| Q: I am due to have a baby boy in May this year! Can you please give me a rough idea of what Hair and ... A: The problem with predicting pigmentation is that such traits are polygenic. That is there are more ... | |
| Eye and Hair Colour of Baby | 1/4/2007 |
| Q: I am due to have a baby boy in May this year! Can you please give me a rough idea of what Hair and ... A: Predictions like this are somewhat hit or miss but in this case we can get some idea. You are a ... | |
| mold on bread | 1/2/2007 |
| Q: if you eat bread with mold on it would it hurt you or help you? A: Most likely neither but it is a bad idea because along with the mold dangerous bacteria could be ... | |
| Biology | 1/2/2007 |
| Q: What is the importance of Biology in BS Hotel and Restaurant Management? A: I can think of at least two considerations here both involving bacteria. Restaurants have to be ... | |
| Fibrous Protein | 1/2/2007 |
| Q: Why fibrous protein such as keratin that make up our hairs has a high tensile strength and a certain ... A: Hi Jordan Why questions are difficult to answer. They involve evolutionary biology which merely ... | |
| Science Fair | 1/1/2007 |
| Q: I'm doing a science fair project on The Effects of CO2 on the Growth of Corral, and I was having ... A: It seems that you have a couple of problems here. The growth of corral is extremely slow so I do ... | |
| question | 12/31/2006 |
| Q: how are alleles in an organism that shows incomplte dominace different from an allele in an organism ... A: With incomplete dominance both alleles are expressed. When we cross some flowers for example a ... | |
| question | 12/31/2006 |
| Q: my question is: describe the characteristics of simple diffusion, facillitated diffusion, and active ... A: Simple diffusion involves movement of molecules from an area of high density to and area of lower ... | |
| question | 12/31/2006 |
| Q: how are sex-leangth traits different from sex-influenced traits. thank u for ur time A: Sex linked traits are those carried on the 23rd pair of chromosomes. Sex linked traits are carried ... | |
| Science Fair Projects NEED HELP!!! | 12/31/2006 |
| Q: My School Name is Hazlehurst High School. I am in 10th grade. No i Don;t have grandparents that ... A: Your sisters are still young. The younger sister and the two cousins would make good subjects but ... | |
| Cigarette Smoke effect on plant growth | 12/30/2006 |
| Q: My hypothesis is Yes Cigarette Smoke will effect plant growth. I plan to test it by using 5 ... A: I found a nice study on this topic that should help you. Go to ... | |
| Do we have the same peception of the world? | 12/30/2006 |
| Q: I got a question to ask you. Scientifically, do normal human have the same perception of taste, ... A: In general probably yes. But there is a difference between what we sense and how we interpret what ... | |
| Science Fair Projects NEED HELP!!! | 12/30/2006 |
| Q: Can U please help me More on it. I never did an science fair project. PLEASEEEEEEEEE!!!....... My ... A: You can contact me through e-mail at waltjh@sbcglobal.net Give me some more information. What is ... | |
| Cigarette Smoke effect on plant growth | 12/29/2006 |
| Q: I am doing a science fair project on the effects of cigarette smoke on plant growth. I am in the 9th ... A: There is not a lot of material about this topic. Some studies about smoke in general have been done ... | |
| Science Fair Projects NEED HELP!!! | 12/29/2006 |
| Q: How Does Age Affect the Nervous System? A: If you are planning to conduct a scientific study about this topic you will first have to develop a ... | |
| Static shock | 12/28/2006 |
| Q: Why are we getting the static shock while touching the materials?? A: Static electricity is generated by friction. When some materials are rubbed together (like ... | |
| I Need an Invesigatory Project in Biology | 12/28/2006 |
| Q: I need an investigatory project for General Science....An investigatory project that is not ... A: There are many possibilities Kirsten. You mention both General Science and Biology. Which is it and ... | |
| help plz | 12/20/2006 |
| Q: why do plants turn to the sun on a sunny day? i know its coz of turgor movement but how? A: You have two questions here : How and Why Why? It is the nature (and DNA) of a plant to capture ... | |
| Dinosaur intelligence | 12/17/2006 |
| Q: Is there any evidence that would lead one to believe that dinosaurs were intelligent in comparison ... A: Of course there is no way we can determine this by scientific study. There is some evidence that ... | |
| Cremation | 12/16/2006 |
| Q: Actually, I was thinking of the atoms that went up the chimney at the time of cremation, not the ... A: Again there are too may factors to suggest a time. The smoke particles would most likely settle to ... | |
| Bird Anatomy | 12/16/2006 |
| Q: Can you possibly give me a brief explanation on why ducks/geese fly south for the winter and ... A: The simple explanation is that bird migration is part of the instinctive behavior controlled by the ... | |
| Cremation | 12/16/2006 |
| Q: Approximately how many years would it take the atoms from a cremated body to be thoroughly mixed ... A: This would certainly depend upon the disposition of the ashes. If they were interred in a container ... | |
| Karyotypes | 12/15/2006 |
| Q: How can homologous chromosomes be identified? What is the major chromosomal difference between ... A: Only by test crossing Gametes (sperms and eggs ) have only half the chromosome numbers You have ... | |
| Horseshoe crab questions | 12/14/2006 |
| Q: Please E-mail me back at the address given. Thank you, ... A: There is a lot to this so I am going to refer you to a web page explaining everything in detail. Go ... | |
| I am a 12 year old gifted student. | 12/14/2006 |
| Q: and so i was wondering if you would be willing to answer a few questions i have. 1st- about how ... A: There are over 20,000 known species of fishes in the ocean but there are probably a lot that have ... | |
| I have 2 complacated quesion | 12/11/2006 |
| Q: this question has three parts #1 A) explain how a light touch stimulates a nerve impulse B) how ... A: These look like homework questions but I will answer the first one. 1. Touch receptors in the skin ... | |
| Plz. answer in complete sentences | 12/11/2006 |
| Q: I am home schooled, and need help on one of my questions... 1) bar-headed geese fly over the world's ... A: Geese flying at high altitudes must overcome problems of low temperatures and low oxygen. Migratory ... | |
| Harmones | 12/9/2006 |
| Q: I'm a 17 years young boy from Pakistan studying in pre-medical and i want to know that how do that ... A: Hormones are secreted directly into the blood stream and reach the organs through circulation. All ... | |
| gravition in cells | 12/7/2006 |
| Q: Why doesn't gravitation apply in a cell? Yours, Annelie A: It does apply. Gravity is a force that is applied to all matter including cells but gravity is the ... | |
| biology | 12/7/2006 |
| Q: it's wanda again!I'm sorry but I forgot one more question for you.What would happen in terms of ... A: Strange that you ask this question. I belong to an increasing school of thought that speciation ... | |
| biology | 12/7/2006 |
| Q: i need a little help,could you please tell me why do carbon dioxide levels in a mixed forest ... A: It has to do with the rate of photosynthesis. Atmospheric CO2 is utilized in the the process. The ... | |
| AIDS through mosquitoes | 12/7/2006 |
| Q: Why doesnt AIDS spread through mosquitoes? A: Mosquitos spread disease organisms through saliva. When the insect bites an AIDS victim the virus ... | |
| test cross | 12/5/2006 |
| Q: What would be the result of a two-trait test cross it an individual was heterozygous for one trait ... A: I can best answer this with an example. Consider a cross with rabbits Let B =brown Let L = long ... | |
| Question | 12/5/2006 |
| Q: Will you please help explain the steps and process photosynthesis in a way i could understand. ... A: I will try Brittini. There are two steps involved. The first is the captute of energy and the ... | |
| rubber plants and growth in top soil | 12/5/2006 |
| Q: I need an interview by dec. 6 about Rubber plants and i have a series of guestions that i have ... A: 1.I an an instructor of biology and physical science at a college 2.Teaching these sciences 3.Not ... | |
| Nicotine | 12/4/2006 |
| Q: How does Nicotine effect the growth of a plant? A: Nicotine is a very powerful toxin and how it effects plant growth depends upon the type of plant and ... | |
| baby hair and eyes | 12/4/2006 |
| Q: my daughter is 2 months old and she was born with reddish blonde brown hair but im concerned where ... A: We are all the result of the DNA we inherit. Your daughters fraternal grandfather had the reddish ... | |
| Biology help | 11/30/2006 |
| Q: 1. Is It True That Carbon can link itself and other elements to form very large molecular ... A: 1. This is true 2 A The heterotrophs would deplete the atmosphere of Oxygen and the Earth would ... | |
| biology | 11/30/2006 |
| Q: describe the adaptations of the blue-footed boobie A: Interesting that you ask about this boobie Samantha. It is on one my favorite birds and I have ... | |
| biology | 11/26/2006 |
| Q: how do i set up a 64 square trihybrid cross with Number of eyes E= 2 eyes e= 1 eye ... A: Set up the possible 8 gametes each axis; The possible gametes are: EHF EHf EhF Ehf eHF eHf ... | |
| biology | 11/26/2006 |
| Q: woodpeckers have long beaks. Describe how Lamarck would explain the long beaks and then describe how ... A: Lamarck believed in the inheritance of acquired characteristics. In this case the birds would ... | |
| Do we see the same colour as each other? | 11/25/2006 |
| Q: I have a question I really want to n=know the answer. Is it true that some people see colour ... A: There are degrees of colorblindness which is inherited. In fact one in eleven males are colorblind ... | |
| biology | 11/24/2006 |
| Q: hey its kristi i go to vacaville christian so its based on christianity thank you for your help i ... A: I tried to answer these questions from a scientific viewpoint not from a theological one. I am not ... | |
| Photosynthesis | 11/24/2006 |
| Q: Could you please explain the following questions: 1- Why does chlorophyll appear green? 2- In ... A: 1. All wave lengths of light except green are absorbed. Green is reflected. 2.Some starch is ... | |
| biology | 11/24/2006 |
| Q: I sent in some q's by a different email and you told me to try and figure them out so I tried and ... A: I find these questions interesting and somewhat misleading. They seem to have been written by ... | |
| Biology | 11/23/2006 |
| Q: Can you describe in simple terms the mechanics of gaseous exchange within the alveoli? A: The exchange of CO2 and 02 is simple diffusion When you take a breath the alveoli contain more 02 ... | |
| Urgent! science test tomorrow!!! | 11/20/2006 |
| Q: This time, i have a few more questions to ask you, im sorry i bothered you too much, sorry =( ... A: She may be using bad habits that can affect the baby such as too much alcohol, smoking or using ... | |
| Respiration? | 11/20/2006 |
| Q: why do invertebrates rate of respiration decrease at high or low temperatures? how does the ... A: Animls use energy in the form of heat. Respiration involves the degradation of glucose into CO2, ... | |
| Questions on reproduction | 11/19/2006 |
| Q: hey mr hintz, i having a few questions that i don't understand. First: what advantage does ... A: Cross pollination brings about variation on plants. Without it we could not see color variations. ... | |
| spices effect on bacteria growth | 11/15/2006 |
| Q: I'm doing an experiment on the effect of different spices (garlic, ginger, basil, cinnamon, parsley) ... A: Sounds good Stephanie. I have never heard of this being done so I cannot predict the results. ... | |
| Cells | 11/15/2006 |
| Q: Why is the cell theory called a scientific theory and not a scientific law? A: Good question Mark. Often the words theory and Law are interchangeable. The cell theory states ... | |
| Science | 11/15/2006 |
| Q: I am a the grade student with a science fair project to do on the normal&abnormal heart rate of ... A: This is an ambitious project. The first thing you must do is state your hypothesis.A good ... | |
| Mineral Questions | 11/13/2006 |
| Q: my name is Rafael and I live in Rio de Janeiro, Brazil. I study at EARJ which means: American School ... A: There are about 3800 different miners recognized with maybe 50 more being discovered each year. ... | |
| biology | 11/13/2006 |
| Q: 1. what happens to sunlight that strikes a leaf but is not trapped by photosynthesis? 2. _________ ... A: I really hate fill in questions but I will give it a go 1.It is absorbed as heat or reflected ... | |
| Biology | 11/11/2006 |
| Q: 1- How could a lack of food intake interfere with functions of individual cells and tissues? 2- ... A: 1.All living cells need glucose for energy: without it they die 2. nervous and muscle tissues 3. ... | |
| biology- excretrion | 11/10/2006 |
| Q: please answer this question ******************************** Urgent ******************************** ... A: Excretion refers to getting waste materials out of the organism so the methods depend upon the kind ... | |
| vegetative state | 11/10/2006 |
| Q: You may not be the right person I should be asking this, please excuse my ignorance. I am writing a ... A: Doctors often place patients in a comatose state when there is a serious head injury to aid in the ... | |
| Zoology | 11/9/2006 |
| Q: What is the importance of zooloy in our society? A: Zoology is the study of animals. We of course are animals so this study becomes important when we ... | |
| mammilian developement | 11/8/2006 |
| Q: I know that mammals are the only species that play, and that mammilian play in the animal world ... A: When you get right down to it play is merely practice for something the animal has to do later in ... | |
| Evolution | 11/7/2006 |
| Q: Does evolution through natural selection produce "better" organisms in the absolute sense? Are we ... A: "better" is a relative term so perhaps the term successful would be more appropriate, successful ... | |
| Eye people | 10/29/2006 |
| Q: On 4/27/2006 Sam asked a question about seeing strange people's faces when his eyes are closed. I ... A: People can perceive of visual images with the eyes closed as they do in dreams because of visual ... | |
| action of digestive enzme | 10/27/2006 |
| Q: here is the detail we were to do amylase activity test for that step1 tube1 :add 6ml of amylase ... A: Tube 1 is a control Tube 2 indicated the presence of starch but no sugar Tube 3 indicated that ... | |
| Cloning | 10/25/2006 |
| Q: I am a 21 year old college student, and after taking a biopsychology class along with a philosophy ... A: Actually cloning goes on all the time and there is no legislation that prohibits it. It is going to ... | |
| Diffusion | 10/24/2006 |
| Q: How does the process of diffusion relate to biology and the cell membrane? Please help!! I don't ... A: The cell membrane is the barrier between the cell contents and the outside environment. The cell ... | |
| large cells | 10/22/2006 |
| Q: What adaptations do large cells have that allow them to survive? A: I am not sure how to answer this question. First of all "large" is a relative term. There are ... | |
| bacteria | 10/22/2006 |
| Q: what does ... A: The first one is a sulfur bacteria and not a pathogen The Genus Mycobacterium belongs to the ... | |
| I dont know what the subject is... | 10/19/2006 |
| Q: Um I dont understand this can you explan it differently pleaseThe trait for a tall plant (T) is ... A: This is merely a genetics problem about a specific trait in a plant. Some plants are taller than ... | |
| breeding | 10/19/2006 |
| Q: Compare and contrast selective breeding and natural selection. A: Both involve new species but selective involves artificial selection whereby people select the ... | |
| Careers in biology | 10/18/2006 |
| Q: I have a bachelors degree in biology but have been unable to find employment. How should i go about ... A: You have to find some kind of specialty. Have you considered teaching. You may need some education ... | |
| biology | 10/17/2006 |
| Q: punnett square showing how mother is normal and daughter with hemophilia. also, genotypic and ... A: Let X= normal gene Xh= Hemophiliac gene Male must be a hemophiliac Female must be a carrier ... | |
| A digestive system question | 10/13/2006 |
| Q: But this happens even if they haven't eaten that day. It's as if eating causes it. (?)A digestive ... A: It doesn't make a difference if food was not taken in that day as there is still food in the ... | |
| Protein functions | 10/12/2006 |
| Q: Am I correct about these functions of proteins? Am I missing any? Functions of proteins. Muscle ... A: The functions you list listed are enzyme activities and all enzymes are proteins so basically the ... | |
| babys eye colour | 10/12/2006 |
| Q: I have dark brown hair and hazel eyes my husband has brown hair and hazel eyes too. My mother has ... A: This gets kind of complicated because eye color and hair color is based upon more that a single pair ... | |
| Energy Pyramid | 10/11/2006 |
| Q: Why are the functions of the energy pyramid important? A: I am not sure how to respond to this as the energy pyramid is a model and has no functon except to ... | |
| science project | 10/11/2006 |
| Q: .. i am doing a science project for school. here is a copy of the assignment: Manufacturers of ... A: There are a number of ways to do this Jay. You will need bacteria media plates. Here is what I ... | |
| Digestion | 10/10/2006 |
| Q: Describe the events that would occur to some protein in a boiled egg from the moment it is taken ... A: Egg protein is albumin. Pepsin in the stomach starts breaking down the protein. In the small ... | |
| GENOTYPE/PHENOTYPE | 10/8/2006 |
| Q: Could you determine a person’s genotype if you knew his/her phenotype. Why? A: No because the phenotype is only telling us what genes are being expressed not what genes are ... | |
| Population growth | 10/6/2006 |
| Q: Sir can you help me figure this out? Subject is since the 1970s, the Chinese government has ... A: The purpose of this policy is population control. Limiting families to a single will ,of course, ... | |
| Cell Biology question. | 10/5/2006 |
| Q: Followup To The four chambered heart of mammals is more complex that the two chambered heart of the ... A: Don"t apologise sharon. These are tough questions. Evolution of all organs shows increasing ... | |
| Frogs | 10/5/2006 |
| Q: Can you tell me why frogs always cross the road when its raining? A: At the risk of sounding facitious I would answer the same as the old "why did the chicken cross the ... | |
| Biology - Ecology | 10/4/2006 |
| Q: Could the Loch Ness ecosystem and/or environmental conditions support a gene pool of 'monsters' for ... A: I do not believe so. Organisms and their environment go togther.. Dinosauers existed within a ... | |
| Cell Biology question. | 10/4/2006 |
| Q: I'm having a tough time with these two questions, It seems like I've been working on them forever. ... A: The term 'more advanced' is relative. We have no criteria for advancement. The paramecium is ... | |
| GRAM STAIN | 10/3/2006 |
| Q: WHAT WOULD HAPPEN IF YOU GRAM STAINED HUMAN CELLS? A: I have never tried but the purpose of a gram stain is to stain a carbohydrate in bacterial cell ... | |
| Cell biology | 10/3/2006 |
| Q: How long do nerve cells, and epithelial cells live/survive? A: It depends on where the epithelial cells are. Skin cells eventually slough off as new ones are ... | |
| egg project | 10/2/2006 |
| Q: If you peel a raw egg without breaking the membrane or "melt" away the shell in vinegar. If you ... A: Water diffuses from an area of high concentration to a area of lower concentration (osmosis) Water ... | |
| menstruation | 10/2/2006 |
| Q: I've met women who tell me that their menstrual cycle is so regular that they can tell me down to ... A: As a male I am not sure how to respond to this never having experienced it. My educated guess is ... | |
| Dichotomous key for leaves | 10/1/2006 |
| Q: ------------------------- Still can't seem to figure this out!!! What would be the trees steps ... A: There are 6 trees left so you have to find distinguishing characteristics between them. Here are ... | |
| biology | 9/30/2006 |
| Q: Simple answers recquired. If a newly discovered bacterium were 0.5 micrometers long, _______ ... A: I cannot answer the measurement questions because I do know the width of the field on your scopes. ... | |
| Population growth | 9/30/2006 |
| Q: If true that few species can continue exponential growth for very long, because environmental ... A: There are no populations without an upper bound. There is a limit to the amount of available energy ... | |
| Dichotomous key for leaves | 9/29/2006 |
| Q: How to make a dichotomous key with the following leaves: horse chestnut, pine(needles), rose, maple, ... A: I will not make the key for you I will show you how to get started. Such keys are called artificial ... | |
| Placental nourishment | 9/28/2006 |
| Q: I just read that animals with a backbone, mammals are generally regarded as the most dominant modern ... A: First of all "most dominant" is a relative term. Mammals are not the most dominant land animals. ... | |
| Biology | 9/25/2006 |
| Q: what is endoscope ? what is fibre optics and a stomach ulcer ? Find out one reason why doctors take ... A: An endoscope is a tube inserted into the body cavity to view the lining. It uses a light generated ... | |
| pesticide | 9/24/2006 |
| Q: (1)why pesticides are added in shampoos,paints,mattresess and in carpets? plz reply ASAP! A: This is interesting. I never knew they added chemicals to paint and mattresses and especially in ... | |
| Heart attacks | 9/24/2006 |
| Q: I am reading that Heart attacks have sometimes been called a disease of modern civilization, because ... A: I am not an expert in sociology but I think there are a couple of considerations here. One has to ... | |
| Hormones | 9/24/2006 |
| Q: Have a question on hormones, when we hear the word hormones, we tend to think of something that ... A: Ah yes! We cannot help our behavior because our hormones are acting up. Hormones are inportant in ... | |
| Cell Walls | 9/23/2006 |
| Q: Mr Hintz, Thank you, I find this very interesting, could you elaborate on why with cell walls the ... A: I was afraid you were going to ask me that. Instead of saying that cells walls could not evolve I ... | |
| Cell Walls | 9/22/2006 |
| Q: Can you help me understand cell wallfunctions? I understand plant cells have a cell wall, that ... A: You are correct about the function of cell walls. They allow rigidity in the plant. Without them ... | |
| DNA/ RNA | 9/20/2006 |
| Q: How do i find the mRNA complement fron 5'-3', fo the following DNA sequence? 5'-GATCCGCTAAGGCCT-3' ... A: Use the base pairing rule as follows DNA-DNA DNA to RNA A-T A-U ... | |
| Changes in Anatomy due to Changes in Gravity | 9/20/2006 |
| Q: the article was fascinating. Though it didin't tell me about the effects on say, mars or the moon, ... A: The effects on mars and the moon would be a matter of supposition. My guess is that the Martian ... | |
| Changes in Anatomy due to Changes in Gravity | 9/19/2006 |
| Q: Now, technically, no one knows what kind of changes would occur to a person born in raised in an ... A: It would certainly depend upon the gravitational field. An organism of Saturn or Jupiter would have ... | |
| Plants | 9/16/2006 |
| Q: Sir, plants seem to have elaborate defense systems, and they can respond to their environment; for ... A: I suppose we do not have a real good definition of intelligence but usually it involves some kind of ... | |
| biology | 9/16/2006 |
| Q: why does the human body have more carbon than a pumpkin? and why does a pumpkin have more oxygen ... A: These are really strange questions. Where did you come up with these? For one thing, a human is ... | |
| Biology | 9/15/2006 |
| Q: Importance of Biology in science and technology A: I get this question a lot and I wonder why it is even asked by teachers as the answer seems so ... | |
| Organisms#2 | 9/14/2006 |
| Q: What does it mean to be an "organism"? The cellular slime mold Dictyostelium discoideum exists ... A: In my definition anything that exhibits life activities is an organism. An individual slime mold ... | |
| Organisms | 9/14/2006 |
| Q: What does it mean to be a "successful" organism? Bacteria are certainly the most numerous organisms ... A: I think "successful" is a relative term and somewhat meaningless. I don't think you can assign a ... | |
| evolution | 9/14/2006 |
| Q: Yes there is misinformation about evolution in my opinion. It is not a fact. Q (1) Is it? I don't ... A: You have to understand the differences between facts and theories Randell. Consider gravity. That ... | |
| Need a Little Guidance | 9/14/2006 |
| Q: I need a little help with a few biology questions. I need to check my daughters work but for the ... A: First question. The sexual reproduction is the key here as bacteria reproduce asexually and a piece ... | |
| Bacteria | 9/14/2006 |
| Q: Explain the evolutionary steps by which bacteria may become resistant to antibiotics, using the core ... A: The assumption is that in a group of bacteria there are some that are resistant to an antiobiotic or ... | |
| Evolutionary trait | 9/14/2006 |
| Q: Using evolutionary principles, explain why large ears might be expected to evolve in a terrestrial ... A: Evolutionary change involves competitive advantage or disadvantages. Do to the nature of sound ... | |
| evolution | 9/13/2006 |
| Q: am amazed. How can the theory of evolution be considered scientific? It can't be tested and then ... A: I feel, randell, that you have been given misinformation about Evolution and there is a lot we do ... | |
| African type hair in genetics | 9/12/2006 |
| Q: Can you help us with regards to ascertaining our possible African Canadian Black history. Is this ... A: Human genetics is a complicated thing and from single features like type of hair we can only guess ... | |
| ribosomes | 9/12/2006 |
| Q: I need to make a model of a ribosome. DO you have any ideas? I cant think of any, they are so ... A: This is sort of an artistic endeavor and I have no artistic ability but I would suggest this. A ... | |
| biology | 9/12/2006 |
| Q: oxygenated red blood cells arrive at capillaries through (A) arterioles (B) cell walls (C) venules ... A: These are homework or test questions sweet and I will only help you if you answer them first. You ... | |
| Pho tosynthesis and cellular respirations | 9/11/2006 |
| Q: DEFINE THE FOLLOWING? 1)ATP 2)NAD PH 3)ADP A: These are nucleotides made up on 5 carbon sugars, nitrogen compounds and phosphates. All three ... | |
| Biology | 9/11/2006 |
| Q: 1. What component is present in every part of a loop, such as one that involves proteins producing ... A: I believe you are new to my site here so I must tell you that I do not answer multiple choice ... | |
| AP Bio Essay Question | 9/10/2006 |
| Q: IN the thawing and freezing of meats and vegtables, what happens to the cells in each and why? A: The life of a cell depends upon its watery internal environment for dissolution and transport of ... | |
| Anatomy | 9/7/2006 |
| Q: I understood that the shape of pinna directs sounds into inner ear where we have multiple individual ... A: Sound waves are not distorted by changing the direction from which they enter the ear.I am afraid I ... | |
| biology | 9/7/2006 |
| Q: what does it mean to describe a scientist as skeptical? why is skepticism considerd a valuable ... A: Science deals in facts and a fact is not a fact unless it can be proven false. If it cannot be ... | |
| Anatomy | 9/7/2006 |
| Q: I'm interested in mechanism allowing human body to perceive direction of incoming sound. Since we ... A: It all has to do with those funny shaped ears that we have. The outer ears (pinna) do not detect nor ... | |
| belly buttons | 9/5/2006 |
| Q: I've been watching a show called Kyle XY. In short, it's about a boy with amnesia and no belly ... A: All placental mammals were attached to the uterus and they have a naval (or belly button) where the ... | |
| Scientific essay | 9/4/2006 |
| Q: what is a scientific essay? For my biology class, I will not be doing any research but have to write ... A: An essay is a narrative written from the authors point of view. It is non fiction and subjective ... | |
| Binomial Nomenclature | 8/28/2006 |
| Q: I am trying to find an example where a species name is capitalized---as when it is named after the ... A: I love some of the names. An example of one your are looking for could be the freshwater jellyfish, ... | |
| hello | 8/25/2006 |
| Q: like what are some things learned in college textbooks? some of the more difficult things in ... A: It depends upon the course of study but usually advanced biology courses delve more deeply into ... | |
| Evolution | 8/24/2006 |
| Q: Is abiogenesis a part of evolution?I understand evolution but abiogenesis escapes me. Any ... A: Abiogenesis refers to the spontaneous generation of life but science has shown that life comes from ... | |
| immunology | 8/24/2006 |
| Q: Respected Sir, Iam doing my graduation in biotechnology, India. I have a doubt in immunology, ... A: This is a good question furquan. Keep in mind that a fertilized egg is inside the oviduct or uterus ... | |
| Please double check my answers | 8/15/2006 |
| Q: Walter, I'm currently studying biology for a high school course that I need to pass very soon. I ... A: I agree with all your answers except the following.#1. I think D is a better answer because such ... | |
| Biology | 8/10/2006 |
| Q: There are no genetic specialists available and I am assuming with your education and experience, you ... A: There are most likey two explanations. The parents of a dimpled individual must both be carrying ... | |
| Baby Hair Colour | 8/10/2006 |
| Q: Our first baby is due in about 4 weeks time and I am interested to see what hair colouring she may ... A: A lot depends upon the grandparents especially your wifes parents. You are passing on genes for ... | |
| bactria growth | 8/8/2006 |
| Q: expriment:took a steriled petridish and exposed it to any surface,sealed and put in a warm place,no ... A: Besides warmth and a surface on which to grow bacteria need nutrients. The agar in the dish ... | |
| Populations and Communities | 8/7/2006 |
| Q: Paul Ehrlich has said, "It is quite possible that the penalty for frantic attempts to feed ... A: Ehrlich believes that there is a limited amount of energy available and if the population increases ... | |
| Organ cloning | 8/7/2006 |
| Q: Hintz: My girlfriend has a cat which is like a son to her but muffy (cat) is suffering from chronic ... A: Please accept my sympathies about Muffy. I lost my cat a few years back and I still feel badly ... | |
| Bacteria | 8/5/2006 |
| Q: Why can a bacteria be called 'imortal'? A: Good question jigishu Mortality means that an organism has a life span. It is born, ages and ... | |
| Transcription DNA/RNA/Protein Synthesis | 8/3/2006 |
| Q: I think I have it but could you explain what you did for me please?What is the antisense DNA ... A: The DNA strand transcribes an mRNA template so I made the mRNA strand according to the base pairing ... | |
| Biology--insects | 8/1/2006 |
| Q: Why are insects so diverse? How many species of them do we find on earth? what are the kinds of ... A: Diversity occurs among living things because that is the way evolution operates. Life is ... | |
| biology | 7/29/2006 |
| Q: In the process of making a proteins, the purpose of an adaptor is to. a)copy the sequence of ... A: I do not like to answer multiple choice test and/or homework questions. You will not learn anything ... | |
| Body temperature | 7/28/2006 |
| Q: Why is it that since our body temperature is 98 degrees, when we are outside in 85 degree weather, ... A: It depends upon a number of factors: The humidity, the rays of the sun (how direct they are) and ... | |
| manufactured and natural antibiotics | 7/27/2006 |
| Q: i went and spoke to a lab assistant at my school to ask if she could order in some manufactured ... A: You do not need a large supply of antibiotics. All you need are sensitivity discs and they pose no ... | |
| Biology | 7/27/2006 |
| Q: Please check my answers to my questions.Thanks 1. By studying the nucleotides in DNA, we get ... A: You were doing fine until #15 B. Primary succession begins on water or bare rock #16 Natural ... | |
| Disease | 7/26/2006 |
| Q: Do a majority of diseases have a central area of origin i.e, Africa, Asia, North America, ect.? A: So it seems. at least with hereditary diseases. Sickle cell began in west africa. Ebola also began ... | |
| biology | 7/23/2006 |
| Q: 1.differentiate sexual and asexual reproduction in animals? 2.Is cell an organism by itself? ... A: 1. Sexual reproduction involves the fusion of gametes while asexual reproduction does not 2. I ... | |
| Sweat and Salt | 7/21/2006 |
| Q: Are sweat glands specialized depending on where they are found on the body? I am sure it sounds ... A: Yes this is weird. All sweat glands have basically the same structure. I would expect the salt ... | |
| height | 7/21/2006 |
| Q: normally height of a normal human being stops increasing after a certain age.if it is due to growth ... A: Heighth is determined by growth in the long bones, There are growth plates at the bone ends. ... | |
| biology | 7/21/2006 |
| Q: 1.contribution of scientific method and microscope to the development of biology? 2.Is cell an ... A: 1. The scientific method allows us to separate fact from non fact. Without facts we could not have ... | |
| second law of thermodynamics | 7/21/2006 |
| Q: When a brown bear eats a salmon, does the bear acquire all the energy contained in the body of the ... A: No.The second states that with any conversion of energy from one form to another this a loss of ... | |
| Decomposer and detritivores | 7/19/2006 |
| Q: I have some enquiry based on decomposers and detritivores: 1. What are the differences between ... A: 1. Decomposers derive their energy by breaking down and metabolizing dead organic organisms. What ... | |
| Blood Sugar | 7/19/2006 |
| Q: I'm A Paramedic, and a question has been brought up that has me thinking. We have always checked ... A: The blood sugar level does change rapidly. The blood sigar level may vary slightly between ... | |
| Questions | 7/19/2006 |
| Q: 1. Minerals are deposited: a) within bone marrow; b) within bone cells; c) between bone cells; d) ... A: 1. I chose c for this reason: Deposits of minerals (mostly calcium) could not be made intercellular. ... | |
| what color hair will my baby have? | 7/19/2006 |
| Q: I know you can't be exact....but I was wondering what color and texture will my unborn baby will ... A: The reason it is difficult to predict things like hair color and texture is that there are multiple ... | |
| spleen and liver | 7/18/2006 |
| Q: I heard that not cooking your food well enough can be unhealthy because of the blood, does this also ... A: There is no evidence that ingesting blood is harmful. Eating uncooked meat can be harmful if ... | |
| biology | 7/18/2006 |
| Q: Plants heterozygous for flower color have pink flowers. A cross between two pink-flowered plants ... A: 25% but Let's work a problem so that you know what happens and why Let R = Red r = white ... | |
| biology | 7/16/2006 |
| Q: 1.The outer covering of viruses is a capsid made of what? 2.Archaebacteria tend to live in extreme ... A: 1. complex proteins 2. low O2 3. different 4. bacteria 5. single celled 6. outside 7. Bad question. ... | |
| can you help me thinking the topic for our investigatory project? | 7/14/2006 |
| Q: I can't open the site. I'm getting nervous right now. I want my project to be good, so please help ... A: I am sorry Sherree. I left a letter out when I gave you the web site. I left out a j Try this ... | |
| Biology Questions | 7/13/2006 |
| Q: On question 2 I was thinking it would be C. Why did you rule C out? Thanks. ~TeresCould you help ... A: Because endocrine secretions are stimulated by nerve impulses. Both involve homeostasis. Nerve ... | |
| can you help me thinking the topic for our investigatory project? | 7/13/2006 |
| Q: I am inetrested in coming up with new things from old things. My teacher wants us to be resourceful. ... A: I am glad you got back to me. I think that the best thing I can do at this time is to refer you to ... | |
| can you help me thinking the topic for our investigatory project? | 7/11/2006 |
| Q: I am Sheree. In 8th grade. Can you help me with my Investigatory project? I can't think of a good ... A: I would be glad to help you but you will first have to give me some more information. What are you ... | |
| need Help with Biology Questions | 7/10/2006 |
| Q: I always do my own homework, this is the first time i've tried one of these sites . . . i just dont ... A: From these questions I believe that these are from an online course. Is that correct? I do not like ... | |
| Humidifier Smell/Water | 7/10/2006 |
| Q: We have two humidifiers in our home. One in our room, and one in our son's room. The one in our ... A: It certainly seems like the smell is coming from another source in the room then the humidifier ... | |
| Can u correct these questions that I have answered | 7/8/2006 |
| Q: 1.The type of inheritance shown when a red- flowering plant is crossed with a white- flowering plant ... A: You missed 11 dwayne; I followed them in order. If I put a c you got it right 1Inc dominance 2c ... | |
| eggs | 7/8/2006 |
| Q: I see that you answered a question someone asked about blood spots in eggs. You said that this ... A: Hey margaret. Why are you so hostile? I was not lying. Why would I do that? The presense of blood ... | |
| Arachaebacteria | 7/8/2006 |
| Q: I am doing an assignment on Archaebacteria and have come accross a few questions that i cannot find ... A: First of bear in mind that these organisms are no longer referred to as archaebacteria since they ... | |
| Endotherms | 7/7/2006 |
| Q: Ambient temp Body temp Oxygen consumption 0 37 2500 10 37 1500 20 ... A: AS to question 1. I looked at the data and noticed that the O2 consumption doubled when the ... | |
| general | 7/6/2006 |
| Q: In middle eastern countries the women are dressed head to toe in black - is it better to wear black ... A: It is a fact that white reflects the suns rays while darker colors absorb it so why do people wear ... | |
| Endotherms | 7/6/2006 |
| Q: I got some enquiry about endotherms. Suppose that the constant body temperature of endotherm is 37 ... A: A constant body temperature is controlled in part by the metabolic rate and metabolic processes ... | |
| Evolution | 7/5/2006 |
| Q: I would like to better understand this: Basically traditional science defends the idea that through ... A: I am afraid that I cannot answer your questions to your satisfaction Fabio. You have asked me why ... | |
| Anatomy&Physiology | 7/5/2006 |
| Q: All homoeostatic functions of the body involve feedback mechanisms. Why is this vital for the body? ... A: Homeostasis means maintaining the status quo. Living systems must be in balance within certain ... | |
| Identify and destroy this bug | 7/5/2006 |
| Q: Do you know what kind of bug this is and do I need to worry about it. I'm not sure if it's killing ... A: These are Earwigs, so called because they were thought to crawl into the ears of sleepers and lay ... | |
| growing bacteria | 7/4/2006 |
| Q: Can you give me a recipe for growing fungus and bacteria. Thank you. A: Growing bacteria and fungi requires time and preparation. They have to have a substrat to grow on ... | |
| Biology | 7/4/2006 |
| Q: Help please! Need to know if my answers are correct. Can you please check 1. Most of the fruits and ... A: You did not do well nicole 1. B is correct 2.B nerve cells do not reproduce 3.B is correct 4.This is ... | |
| please answer my questions | 7/4/2006 |
| Q: We are a group of biology teachers following a professional development course. We'd be glad if you ... A: With regard to thes equestions we may be having some language problems as I find it difficult to ... | |
| Biology 30 | 7/2/2006 |
| Q: I'm having a hard time on this question Saltatory conduction speeds impulse conduction. Explain why ... A: The longest sensory neurons are covered with a myelin sheath and myelin is an insulator. Spaced ... | |
| woodlice | 7/2/2006 |
| Q: i am doing an experiment in woodlice and would like to ask a few questions . my questions are ... ... A: I assume you are studying sowbugs or pillbugs (Isopods) I have never done this study. Are you ... | |
| OK I ANSWERED THEM TO MY BEST ABILITY | 7/1/2006 |
| Q: When yeast ferments the sugar in a bread mixture, what is produced that causes the bread dough to ... A: Good for you. Since you did not number them I just went in order 1. CO2 2.correct 3.two pO4s 4. Heat ... | |
| Digestive system | 6/30/2006 |
| Q: how do i make a model of the digestive system and what th materials that i will need A: This is a project that I have never done with a class but here is how I would do it. Get some ... | |
| hello | 6/29/2006 |
| Q: i am taking an advanced biology class and am wondering what types of things i will be learning ... A: All advanced biology classes are not the same and it varies with the school,the teacher, and the ... | |
| Biology - chromosomes | 6/29/2006 |
| Q: If you have a diploid number of 8, how many chromosomes will each daughter cell contain? Diploid ... A: A diploid number of 8 means that there are 4 pair of chromosomes. During mitosis the paired ... | |
| Circulatory system | 6/28/2006 |
| Q: I just read that the human circulatory system has its blood distributed: 75% veins, 20% arteries and ... A: I am not acquainted with thsi study so all I can say is that since all mammals have similiar ... | |
| biology | 6/28/2006 |
| Q: NOW IF AN ANIMAL HAD A HAPLOID OF 5 HOW MANY COULD IT PRODUCEi'm confused if an animal had a haploid ... A: We are considering an organism with a 2n number of 10. The DNA sequences are paired and during ... | |
| biology | 6/28/2006 |
| Q: i'm confused if an animal had a haploid #of 2(no sex chromosomes) how many genetically types of ... A: I believe my previous amswer was confusing. Let me start with some basics. Chromosomes are ... | |
| biology | 6/26/2006 |
| Q: what is the importance of biology in: Florist Pharmacist lifeguard vendors of fruits beterinarian ... A: Interesting question Kristal Florist- Needs knowledge concerning types of plants and their growth ... | |
| jellyfish | 6/25/2006 |
| Q: Are you saying that the nervous system is not centralized? How does it make decisions, like where ... A: In a way the entire nervous system is like a brain. All of the neurons are connected in what is ... | |
| Glycogen and what it provides energy to. | 6/24/2006 |
| Q: I am currently working on biology in High school and none of the books I have in the course look at ... A: Glycogen is a complex carbohydrate sometines referred to as animal starch (as opposed to cellulose ... | |
| biology | 6/24/2006 |
| Q: what are the contribution of leonardo da vinci and michelangelo to developments of biology? A: Leonardo was a scientist as well as an artist but did not make any real contributions to biology. ... | |
| biology | 6/22/2006 |
| Q: 1. What is the value of biology in the society and technology? 2. What are the development of ... A: 1. Biology is the study of life and a society is a group of living organisms (like us) Technology ... | |
| biology | 6/21/2006 |
| Q: what are the branches pf biology? A: I have gotten this question at least a dozen times in the last week. Are a lot of you in the same ... | |
| Chemistry and the life of cells | 6/20/2006 |
| Q: 1. All except three codons provide codes for amino acids. These three codons are used as _______ ... A: These are homework questions or test questions and it is my policy not to do them. These questions ... | |
| hot tea in the summertime | 6/20/2006 |
| Q: Here's a curious fact I had known for years but could never really explain; maybe you can help. I ... A: The only explanation that comes to mind Augusto, is that ingesting hot drinks and foods increases ... | |
| biology | 6/20/2006 |
| Q: what is biology? A: Biology is a word taken from the Greek. It means "the study of life" Could you help me out here ... | |
| biology | 6/19/2006 |
| Q: branches of biology sub branches of biology A: There are many branches of biology. We can start with Botany and Zoology as the two main branches; ... | |
| biology | 6/18/2006 |
| Q: What is the difference between living from non-living matter and what are the different ... A: By answering the second question I am also answering the second one. Living things exhibit these ... | |
| biology | 6/17/2006 |
| Q: what are the branches of biology? what is life? why is testing important in science? differentiate a ... A: There are many branches of biology. At first there was just Botany and Zoology (plants and animals) ... | |
| biology | 6/16/2006 |
| Q: i just want to ask what are the importance of biology in shelter, food, water, and many more.. A: As worded his is a hard question to answer. Look at it this way. Ask yourself why these things ... | |
| marine biology, (seawater, barnacles) | 6/14/2006 |
| Q: if you answers to any of these questions,or anything else on the subject please email me back as ... A: Barnacles are arthropods that build a calcareous shell to live in. They have jointed appendages ... | |
| Community Interactions | 6/14/2006 |
| Q: My teacher handed out a worksheet today, and I am having trouble explaining one of the questions: ... A: The biotic potential is the actual number of individuals that a species can produce under optimal ... | |
| Biology | 6/13/2006 |
| Q: What is the importance of biology for understanding behavior. A: When we consider the behavior of animals other than humans we have to understand the biological ... | |
| Biology | 6/13/2006 |
| Q: i am confused in blood cirulation and how it works and travels where to where. A: I am afraid you will have to be a little more specific. This is a pretty general question and ... | |
| branches of biology | 6/13/2006 |
| Q: could you please tell me all thee branches of biology using a family tree? Dr. Walter Hintz. A: I am not sure what you are looking for. My guess is that you are seeking a diagram showing the ... | |
| Global Consciousness | 6/13/2006 |
| Q: I actually found this theory on wikipedia, after double-checking. It's known as the "100th Monkey" ... A: A strange happened after I responded to your question the other day. Besides my college teaching I ... | |
| Mushrooms | 6/13/2006 |
| Q: I am wondering if you know anything about mushrooms growing in my lawn, and what would kill them and ... A: First let me explain something about fungi. Mushrooms are the fruiting or reproductive structure of ... | |
| Questions | 6/12/2006 |
| Q: RE: Question #1 -- Can you explain how you came to conclusion b). We have been discussing and ... A: a is actually but is merely restating the question. It is saying that when tRNA binds to mRNA it ... | |
| Global Consciousness | 6/11/2006 |
| Q: I've vaguely read in the past about the "Global Consciousness" theory. I believe the theory has been ... A: Very interesting. I have never read about the "global consciousness theory" before. As to the ... | |
| Bear Hibernation | 6/11/2006 |
| Q: I am interested in learning more about what wild animals, bears in particular, do with the wastes ... A: Actually beras do not enter into real hibernation but undergo what is known as "winter sleep" Their ... | |
| biology | 6/9/2006 |
| Q: 1.How might an earthworm's lack of appendage be an adaptation to burrowing? 2. Imagine an assembly ... A: 1. an appendage is fine for digging and moving soil backwards but would be an impediment to ... | |
| Singing | 6/8/2006 |
| Q: I am trying to become a good singer and I just have tons of questions about the science behind ... A: I really do not know much about singing or the techniques involved but the human vocal cords are not ... | |
| biology | 6/6/2006 |
| Q: 1.In the contest over territory, two male deer confront each other with antlers lowered and engage ... A: I do not know how the authors of these questions came up with a nanometer(question #3) but in no way ... | |
| Food Chains | 6/6/2006 |
| Q: Which food chain represents the most efficient use of energy for humans? Or None? Food Chain 1: ... A: 1st question Food chain 3. This is because of the 2nd Law 2nd question In my opinion all are ... | |
| biology | 6/5/2006 |
| Q: 1.In the contest over territory, two male deer confront each other with antlers lowered and engage ... A: 1. I have seen this question many times. c is probably the best answer 2.c You cannot see ribosomes ... | |
| biology | 6/5/2006 |
| Q: meiosis and mitosis !!! I have a test tomorrow and I need an outline for that "meiosis & mitosis" ... A: Go over the stages of cell division. Then close your book and ask yourself this question. "What ... | |
| biology | 6/5/2006 |
| Q: 1.If you're a fat molecule forming the inner layer of a cell membrane, your head will face toward? ... A: 1. I have problems with this question Mary because the cell membranes are made up of lipoproteins ... | |
| Abandoned Agricultural Field Study Question | 6/5/2006 |
| Q: The data below was taken during a study of an abandoned agricultural field. Scientists counted the ... A: question 1 conclusions Shrubs appear before trees It takes a long time for the biodiversity to ... | |
| mitochondrial deficiency | 6/3/2006 |
| Q: This is my biology homework. I'm allowed to ask anybody I want as long as I quote you. ... A: I do not know much about cytocrome b deficiency but lack of muscle mitochondria could cause a ... | |
| Biology | 6/2/2006 |
| Q: What is Emphysema? Is ther any treatments? A: This is a lung ailment whereby the alveoli have lost their elastitcity make it difficult for the ... | |
| Info | 6/2/2006 |
| Q: I have two questions 1.) Why does a person floats on a liquid(especially water)after death(if the ... A: 1. Upon the death on the individual decay brings about the formation of methane gas bloating the ... | |
| biology | 6/2/2006 |
| Q: can you compare and contrast mitosis and cytokinesis in animal cells and plant cells A: The main difference occurs during telophase when the cells divide completely. In animal cells a ... | |
| Biology | 6/1/2006 |
| Q: what does cholesterol do? A. it makes steriods. B. it provides crucial amino acids. C. it reduces ... A: I will help you when I can but remember that I will not do your homework. To many students will ... | |
| Biology | 6/1/2006 |
| Q: what does cholesterol do? A. it makes steriods. B. it provides crucial amino acids. C. it reduces ... A: All of these other choices are wrong, but theanswer you will have to pick is A. Cholesterol is the ... | |
| Skin Pigment | 6/1/2006 |
| Q: Has biology discovered a limited number of human skin pigments as that a complete color palette ... A: Skin color depends upon multiple alleles and as far as I know there is no real limitation to the ... | |
| Biology | 6/1/2006 |
| Q: Mitochondria and chloroplast were once thought to be free living , whats the name of that theory and ... A: The word you are searching for is Endosymbiosis. This idea was put forth by a great biologist named ... | |
| Why are the ratios of elements... | 6/1/2006 |
| Q: Why are the ratios of elements in molecular formulas always fixed, H2O instead of H5O? and CH4 ... A: This is a good question and one that I often get from my students. Chemical language is a lot like ... | |
| Biology | 5/29/2006 |
| Q: How do trees in a forest sequester(incorporate) carbon adn thus decrease global warming? What plants ... A: Trees take in CO2 through openings in the leaf called stomata. I do not know which plants in ... | |
| virus | 5/28/2006 |
| Q: hope to find u in good health.I sometimes wonder about viruses.what they are?can they be annihilated ... A: I live in the state of Ohio which is in the midwestern part of the US. The virus enters the human ... | |
| Room Temperature/Weather | 5/28/2006 |
| Q: I have always wondered why in the winter, the temperature of my house is 70 degrees, feels too cool ... A: I have to admit it but I too wonder why this is so. Temperature regulation of our bodies varies ... | |
| Filiment worms | 5/28/2006 |
| Q: Mr. Hintz: Any information on filiment worms for the Oregon area? Found a worm this morning in our ... A: This is amazing because I have been talking to a woman from Oregon about worms she found. I have ... | |
| virus | 5/26/2006 |
| Q: hope to find u in good health.I sometimes wonder about viruses.what they are?can they be annihilated ... A: It has been a long time. A virus is a bit of DNA surrounded by a protein coat or shell. It lacks ... | |
| Tundra | 5/25/2006 |
| Q: Will global warming or human intervention have a negative impact on the tundra in the future? A: Abslolutely. Biomes are as they are due to abiotic factors like precipation and temperature so a ... | |
| The Eye | 5/24/2006 |
| Q: What are the structures that enable vision? the least amount of stuctures, i can read about the ... A: Have you ever seen how a pinhole camera is made? All you need is a box with a hole in front and ... | |
| DNA sequence encoding..... | 5/22/2006 |
| Q: Mr. Hintz, Someone asked these same series of questions some time ago. I followed the ... A: This is a piece of DNA. To get the template you will have to show the mRNA sequence. Use the base ... | |
| dog urine | 5/22/2006 |
| Q: Can you tell me why dog urine stains so badly and is so difficult to remove stain and smell no ... A: I am sorry that your dog is having this problem. I do not know what products are best. I think ... | |
| Body waste | 5/17/2006 |
| Q: How percisely can a person push their body to remove waste naturally? Can a person have all waste ... A: I am not sure what you are thinking about here James. Elimination of wastes is a natural process as ... | |
| Biology | 5/16/2006 |
| Q: 1) according to the "Gremlin Hypothesis," hundreds of invisible gremlins reside inside every light ... A: I am sorry but these questions require pages of response and explanation. They invole research that ... | |
| Bioenergy | 5/16/2006 |
| Q: i was disappointed, when u responded to my last question by saying that "i dont do home work ... A: Sorry vishnu; I do not recall this particular question but from what you wrote I do not consider ... | |
| Pathogens/immunity/disease | 5/16/2006 |
| Q: Just a quick question, do all pathogens that enter an organism cause disease? AND...one more- what ... A: The word pathogen implies that the organism is disease causing so the answer would be yes. However ... | |
| Breathing | 5/15/2006 |
| Q: What happens to our breathing rate when we exercise and how is it regulated? Why is this, an example ... A: When we exercise we increase the CO2 level in the blood. Chemoreceptors in the neck detect the ... | |
| Biology | 5/15/2006 |
| Q: Please sir, can you give me detailed precise information about the importance of biology? A: I seem to get this question a lot. It seems to me that the importance of biology (and I guess we ... | |
| earthworms | 5/14/2006 |
| Q: what is bilateral symmetry when they talk about earthworms? A: Animals with a bilateral symmetry can be divided into a right and left side by a division through ... | |
| AIDS | 5/12/2006 |
| Q: I wish to know as to how the White Blood Cells are incapable of defeating the virus? And what ... A: A virus particle injects it's DNA into the host cell (T lymphs) The white cells have no defense ... | |
| antibacterial gels harmful to you? | 5/9/2006 |
| Q: I hope I'm finding you in the best of health. I saw places like Crabtree&Evelyn sell antibacterial ... A: I do not know anything about this product but personally I would avoid using anything with such a ... | |
| animal cells | 5/9/2006 |
| Q: Why are animals made up of more cells rather than bigger cells? A: Good question David; I have a whole lecture on this topic but I will try to summerize it for you. ... | |
| Agar mixtures | 5/8/2006 |
| Q: Can you please aid me in a homemade agar mixture that will grow most molds found in buildings and ... A: E. The best commercial agars for growing fungi are Sabarouds dextrose agar (SDA) and Potato dextrose ... | |
| Photo-sensitive sneezing | 5/7/2006 |
| Q: What's up Hintz? I suppose this would be a biological question. Why does light make me sneeze. ... A: I know what you are talking about because it happens to me also. If I feel like a sneeze and can't ... | |
| micro biology | 5/6/2006 |
| Q: What kind of fungus, bacteria or mold causes the stinky smell in sneakers? What is the best way to ... A: The usual cause of smelly sneakers is the presence of two different types of bacteria: ... | |
| nervous system | 5/6/2006 |
| Q: explain the term "motor impulse" in relatoin to muscle contraction. define the term "motor point". A: Nerves are either sensory or motor. Sensory nerves carry messages to the spinal cord and brain. ... | |
| Biology | 5/5/2006 |
| Q: While walking through a forest you notice the someone has carved their initials into the bark of a ... A: The initials will still be five feet from the ground. The main trunk grows in diameter but not in ... | |
| fingerprints and i.q | 5/4/2006 |
| Q: Followup To i choose the topic because i like forensics and it would be interesting on how ... A: Yes it would be interesting if fingerprints affected intelligence but they do not. Think about it ... | |
| fingerprints and i.q | 5/4/2006 |
| Q: my topic is DO FINGERPRINTS AFFECT YOUR I.Q? HELP IF U COULD PLEASE RESPOND ASAP ... A: You can certainly find a lot about fingerprints at google but I know of no connection with I.Q. In ... | |
| fingerprints and i.q | 5/3/2006 |
| Q: my topic is DO FINGERPRINTS AFFECT YOUR I.Q? HELP IF U COULD PLEASE RESPOND ASAP ... A: Let me be honest with you Dan. This is not a good project and it cannot be tested. First of all ... | |
| question of interest | 5/2/2006 |
| Q: Can blind people see their dreams? A: Dreams are based upon visual memories stored in the occipital lobe. They cannot visualize memories ... | |
| carbon dioxide removal | 5/1/2006 |
| Q: I have a paper to write '' Co2 is toxic and must be removed from the body, discuss in detail how ... A: CO2 ia a component of the air we breath. It is not a toxin so I do not know where this statement ... | |
| Seeing things when my eyes are closed | 4/27/2006 |
| Q: I am curious as to why I see clear, moving images of people's faces (not people I recognise) when I ... A: I am afraid that I must join all of the others who can offer no explanation for this. It appears ... | |
| Photosnthesis and cellular respiration | 4/25/2006 |
| Q: What do you mean you you said "Chlorophyll is not involved in Cellular respiration? A: Chlorophyll is necessary for photosynthesis. 6CO2 + 6H2O >>>>> C6H12O6 + 6O2 (Light and ... | |
| humidity response in woodlice | 4/23/2006 |
| Q: I asked an expert in here and he is on vacation! I don't know if my question category is right, but ... A: First of all it is true that evaporation is less in humid conditions. Please note that I refer to ... | |
| Nutrition. | 4/14/2006 |
| Q: Is it better to use all natural food and vitamin products than to use synthetics versions? Or are ... A: I believe it is better even though chemically the vitamins are the same. From an environmental ... | |
| Aging and death | 4/14/2006 |
| Q: What exactly causes people to age and eventually die? There was this one guy whom was talked about ... A: You have posed a lot of questions here James, most of which I have no answer for. I developed and ... | |
| humans | 4/12/2006 |
| Q: I was watching a show on prokaryotes and eukaryotes and it said that they are what everything came ... A: Evidence tells us that life forms began from single cells and the firtst cells were prokaryotes. ... | |
| birds evolved from dinosaurs | 4/11/2006 |
| Q: I know that birds are deprived from dinosaurs, but how could they have evolved if dinosaurs and ... A: Good question Christina. Extinction is a part of the evolutionary process. The evolution of ... | |
| calcium | 4/9/2006 |
| Q: Why do we need to increase our calcium (Ca++) as we get older? A: Bones are constantly breaking down(osteoclastic activity) and being built up (osteoblastic activity) ... | |
| breathing | 4/9/2006 |
| Q: Why do we breathe? A: Do you mean the reason we breath or what makes us breath? Reason: Breathing is the mechanism by ... | |
| how does DNA hold information... | 4/5/2006 |
| Q: how does DNA hold information? A: I have a whole lecture on this sarah but I will simply summerize things and if you have a question ... | |
| Genetics | 4/5/2006 |
| Q: Males have XY chromosomes while the females have XX chromosomes.In science male is responsible for ... A: It is all a matter of chance Muhammad. When sperms develop they contain either the x or y ... | |
| biology-red blood cell and too much hemoglobin | 3/28/2006 |
| Q: A doctor tells a patient that his red blood cells are abnormally high in hemoglobin content. The ... A: This is a silly question that puzzles me for many reasons. The red cells themselves can be low ... | |
| Gas exchange in birds, fish, and humans. | 3/27/2006 |
| Q: I need help comparing and contrasting the gas exchange systems of birds, fish, and humans. Why can ... A: First of all keep in mind that fish require less O2 then birds and mammals since they are cold ... | |
| Dear Sir' I would like... | 3/27/2006 |
| Q: I would like to thank you. I am 45 years old and going back to school to be a nurse. These questions ... A: I will do what I can Debbie and I admire you for going back to school. I teach biology at a ... | |
| Dear Sir, the questions... | 3/27/2006 |
| Q: the questions that I ask you are home work, however they are not in my text book, these questions ... A: I hope you understand but you have sent me many questions , many requiring very long explanations. ... | |
| nipple sensitivity | 3/25/2006 |
| Q: Who's nipples are generally morew sensitive? men's or women's? i need to settle a debate!! thank ... A: Since both respond right away to touch I would say that there is no difference in the actual ... | |
| Replication and reproduction of genes | 3/24/2006 |
| Q: Mr. Hintz, I am currently taking a college level biology class and I have two questions about genes. ... A: This is tough to answer because I do not know how much you already know about DNA and meiosis. I ... | |
| Alternative Biology. | 3/23/2006 |
| Q: To start with I must state a fundamental fact of the universe. That is, any finding can be ... A: This is a tough one Sam but I do not think the world would be any different. Why do you assume that ... | |
| Birds | 3/21/2006 |
| Q: I know that some birds have scales, but why do they have scales? Reply A.S.A.P ... A: You have asked a question from the field of evolutionary biology. They have scales for the same ... | |
| biology | 3/20/2006 |
| Q: Why is lactic acid fermentation used in our bodies? What does it do? A: Muscle tissue does not have a large O2 supply but still the muscles require energy. Fermentation is ... | |
| botany | 3/19/2006 |
| Q: I have got 2 questions.Hope u don't mind: 1 It is said that the one of the major forces that is ... A: 1. Transpiration is important when water has to move a greater distance against gravity and osmosis ... | |
| rings | 3/13/2006 |
| Q: hope to find u in good health i have a question about rings sometimes it appears on skin that it is ... A: It sounds like a fungus infection of the skin called ringworm. It is related to the fungus causing ... | |
| smells | 3/10/2006 |
| Q: So this may seem like a really elementary question, but why do farts and feces smell bad? like the ... A: I get this question about once a year. During digestion foods are broken down and new chemicals are ... | |
| biology | 3/9/2006 |
| Q: 1.Qxygen red blood cells arrive at capillaries through. A.arterioles B.cell walls C.venules ... A: 1 A 2 C 3 B 4 C 5 D 6 D 7 A 8 C 9 C 10 A I do not usually answer these homework questions but your ... | |
| evolution | 3/8/2006 |
| Q: What is your opinion on evolution? Has it been proven? What is the largest agreement? A: Is it a scientific fact? Not really because it cannot be proven false. Does the theory fit the ... | |
| Palaeolithic Man and Sleep Habits | 3/6/2006 |
| Q: I'm currently doing a Palaeolithic-type diet and am doing very well on it. I'm now studying ... A: I find this fascinating but I do not know much about the Paleolithic period including the sleep ... | |
| "I am boy at the age of 16.... | 3/5/2006 |
| Q: "I am boy at the age of 16. But i am little bit shorter than my frends. So i want to increase my ... A: Sorry about the misunderstanding Mohamed. In the US when a male asks about length it means penis ... | |
| Bacteria growth | 3/4/2006 |
| Q: I 'm doing a science fair project on how different kind of light effect on the growth of bacteria. ... A: Most bacteria do not require light for growth but can be killed by ultraviolet wavelengths. This ... | |
| Bacteria | 3/3/2006 |
| Q: Is there more bacteria in a human's mouth, on a toliet, or in a dogs mouth and why? Help would be ... A: There are some factors to consider Did a person just clean their teeth? Is the person or dog sick? ... | |
| increse my length | 3/3/2006 |
| Q: I am boy at the age of 16. But i am little bit shorter than my frends. So i want to increase my ... A: I assume we are talking about penis size. Penis size is a part of your heredity so at this point ... | |
| Biology | 2/28/2006 |
| Q: i have been stuck on these questions for a while now. Any help would be greatly appreciated! 1. ... A: 1. b and g are autotrophs 2. I guess you could call it opposable like a thumb is called. 3. ... | |
| Biology 11 | 2/26/2006 |
| Q: I have three questions for you... 1)What was Lyell's contribution to scientific knowledge? 2)Why ... A: 1.His concept of uniformitarianism. He made geology scientific not just based upon fundamentalist ... | |
| Biology... | 2/24/2006 |
| Q: I Need Alot of help and im hoping you can help me!! Suppose you're a physician treating an infant ... A: I usually do not do Multiple choice questions Tanna. I will go over these. In the future look for ... | |
| Crop disease | 2/24/2006 |
| Q: Why is biological literacy essential in the battle against crop disease? And: What is the ... A: Disease is a manifestation of biological organisms. You have to know the enemy. A hypothesis is an ... | |
| darwinism | 2/23/2006 |
| Q: I'm sorry to ask a half historical question. I'm recently doing a project on darwinsim. But I'm ... A: Social Darwinism is a theory that evolutionary theory can explain political and ethical thought. ... | |
| electricity | 2/23/2006 |
| Q: Explain why electricity kills? A: The nerve pathways through the heart are cyclic. the neurons are polarized to permit the impulse to ... | |
| regeneration of flatworms | 2/22/2006 |
| Q: Hintz, My son wants to do an experiment on the regeneration of flatworms but we don't know where to ... A: Two weeks is not much time and it takes more than two weeks for generation in planaria to occur. ... | |
| Ebola? | 2/22/2006 |
| Q: Sorry it has taken me so long to return the last e-mail and thanks for responding so soon last time ... A: You are correct in that I do not remember the exact question about Ebola. I have not kept up with ... | |
| Scientific Experimentation | 2/22/2006 |
| Q: Has scientific experimentation proven that life spontaneously originated on Earth from non-living ... A: No. Experiments have shown that life comes from life and is not spontaneously generated. Some ... | |
| biology | 2/18/2006 |
| Q: the question is three fold: Please explain the importance of the surface area/volume ratio to a cell ... A: This is a somewhat complicated concept so stick with me. There is a mathematical principle called ... | |
| Hello | 2/17/2006 |
| Q: how are you? I was wondering if you can explain to me this question. I am a independent AP student i ... A: It is difficult to answer this question briefly since I am unaware about what you already know about ... | |
| biology | 2/13/2006 |
| Q: 1 about how common is Alcaptonuria 2 is Alcaptonuria caused by a gene mutation or a chromosome ... A: AKU is a genetic mutation or inborn error of metabolism (IEM) The gene locus is known (3q21q-23) ... | |
| dog urine saturated carpet | 2/12/2006 |
| Q: I'd like to know what kinds of bacteria and mold grow in dog urine saturated carpeting, pad and ... A: Bummer!! Since the urine is acid and contains nitrogen, ammonia is a byproduct which will retard ... | |
| Mercury in Fish etc. | 2/12/2006 |
| Q: There's been a big media scare in recent years re the danger to humans of mercury levels in fish. ... A: It is not just a theory. There has been an increase in the Mercury level in certain fishes, ... | |
| A&P Lab Help! | 2/11/2006 |
| Q: I have an anatomy and phsiology test coming up and I am not sure if I understand the concepts and ... A: I am having problems with this lab. If I understand the proceedures I would expect blood cells to ... | |
| Marine Parasites | 2/10/2006 |
| Q: What is the difference between a monogenean and a digenean parasite? What is the difference between ... A: Mono means one and di means two Monogeneans are flukes that complete the life cycle in one ... | |
| Human Beings.. | 2/10/2006 |
| Q: What causes people to age ? What is the "biological clock"? A: The aging process seems inevitible and is still mysterious. We believe that individual cells are ... | |
| biology | 2/10/2006 |
| Q: thx walter for ur previous response... X grade actually meant 10th grade,,, the roman numeral,, the ... A: Tenth grade. Got it. 1.Dogs have keen sense of smell which can help in some detection 2. Lipids ... | |
| biology | 2/10/2006 |
| Q: ... i am a student of X grade... can u please help me with the following questions--- 1. Several ... A: 1. Growth depends upon the root system. Pruning it will stunt growth 2.Handedness is determined by ... | |
| Shape of Salmonella typhi | 2/8/2006 |
| Q: had a project concerning an in depth description on the bacteria Salmonella typhi which causes ... A: On special media S typhi grows in circular colonies but the individual bacteria are separate. There ... | |
| biology 12 | 2/6/2006 |
| Q: I need a 200 word answer to this question and I am not uderstanding this plant 1 is supplied with ... A: I am in no position to produce 200 word essays but I can point you in the right direction. Look at ... | |
| Sonic waves affect the brain? | 2/6/2006 |
| Q: First of all it was difficult for me to find an especific expert to ask this question because it ... A: I am not an expert on sonic waves. However sound waves have been used by dental hygenists to clean ... | |
| can liquids other than water grow radish? | 2/5/2006 |
| Q: I am doing an experiment and i need to find some fact why soysause, 7-up, and milk make the plant ... A: All plants need water to grow but milk , soda pop etc.are mostly water. The other ingrediants might ... | |
| biology | 2/2/2006 |
| Q: How do you predict the weight or volume or surface are of an object from each other? A: I suppose that all predictions are based upon known facts and observations. Geologists predict ... | |
| Laughs | 1/29/2006 |
| Q: Why is it that when we laugh, we tend to say "ha ha ha" but not other pronunciations? A: I started thinging about laughter and came to the conclusion that we do not really say ha ha at all. ... | |
| Plagues | 1/27/2006 |
| Q: What causes plagues to stop ? ? ? What caused the 1918 flu plague to stop killing people ? ? ? A: There can be more than one reason depending upon the causative organism. Some people have a greater ... | |
| Dying Instantly | 1/26/2006 |
| Q: but do you know what part of a second in time does the blood stop in the heart, blood to organs, ... A: I do not know if we can be as precise as you want because there are variable factors involved. If ... | |
| Dying Instantly | 1/26/2006 |
| Q: How does the body shut down when we "Die Instantly" as in a car accident? A: Instant death is kind of a misnomer. In most states death is defined as the cessation of brain ... | |
| biology | 1/23/2006 |
| Q: how many codons are needed to create a gene? A: The general rule is "one gene equals one polypeptide" A polypeptide in this case is made up of 450 ... | |
| biology | 1/23/2006 |
| Q: how can geographic isolation change a population's gene pool? why is rapid evolutionary change more ... A: The isolation separates the number of individuls in the population and the lerger the popu;lation ... | |
| Canine VS Feline | 1/23/2006 |
| Q: My son is testing whether dogs or cats have more bacteria in their mouth for his 4th grade science ... A: What grew are either bacteria colonies or fungus colonies. Be sure you or your son does not touch ... | |
| biology | 1/21/2006 |
| Q: what are the two parts of a conclusion?(scientific method): A: Was the hypothesis proved or disproved You have seen that I occcasionally avoid answering some of ... | |
| DNA | 1/19/2006 |
| Q: I would really appreciate it if you can tell me a Science fair project i can do for my high school ... A: There are many projects you can do. Go to this site http://www.cdli.ca/~jbarron/biology.html It ... | |
| sensory and nervous system | 1/13/2006 |
| Q: desribe how the sound of your friends voice is converted into nervous impulses to be sent to the ... A: The first question involves the anatomy and physiology of the ear. To summerize the air vibrations ... | |
| sensory and nervous system | 1/13/2006 |
| Q: the nerve cell is specialised to transmit messages from one part of the body to another. Explain how ... A: This question requires a very long involved explanation. This information should be in your text ... | |
| Human Body Systems | 1/12/2006 |
| Q: can you pls help me with some materials on Human Body Systems, say for example, some lecture notes, ... A: This is a large undertaking J. There are so many materials available. What grade level is this? I ... | |
| About my science fair project | 1/11/2006 |
| Q: I need help on a idea for my science project can you give me site on where to show me step by step ... A: There are a lot of books and articles about this topic. Are you acquainted with Google? If not go ... | |
| Biology- Water Molecules | 1/11/2006 |
| Q: Explain why water dissolves so many different substances. A: The water molecule consists of two atoms of Hydrogen each with a positive charge (Each atom is a ... | |
| parasites | 1/11/2006 |
| Q: Are there any examples of symbiotic relationships that are initially mutualistic (good for both ... A: According to those who study the biology of parasitism most parasite-host relationships began as ... | |
| Taxonomy | 1/10/2006 |
| Q: Hintz, My name is Kyle and I am in 10th grade biology. My teacher gave us an extra credit assignment ... A: 1. The science of classifying living things 2. To classify and catagroize living organisms 3. He ... | |
| Is a dog's mouth cleaner than a human's mouth? | 1/1/2006 |
| Q: I am using easy gel petri dishes for this experiement. I read your answer to Mackenzie. I am a ... A: Mouth germs grow best at body temperature but a furnace room would work and most germs grow in 24 ... | |
| Botany | 12/30/2005 |
| Q: I'm doing a science fair project on how the ingredients of sugar, vinegar, and an asprin mixed ... A: It would help me answer your question if I knew a little more about your hypothesis, experimental ... | |
| dryness? | 12/29/2005 |
| Q: hope to find u in good health thanks a lot for being so helpful.i have a question about general skin ... A: Here are some causes for dry skin Abdul. Inactive oil glands Exposure to weather or chemicals ... | |
| dryness? | 12/29/2005 |
| Q: hope to find u in good health thanks a lot for being so helpful.i have a question about general skin ... A: Dryness can be caused by a lot of things. I think that using some kind of a cream like a chapstick ... | |
| Cramps | 12/28/2005 |
| Q: Hoping that your last name does not imply that you will be supplying partial answers, here we go. ... A: A Charley horse is a pain in the quadriceps femoris. No one really knows where it came from. There ... | |
| Hi Walter, I live in the... | 12/24/2005 |
| Q: I live in the San Francisco Bay Area and within the last 15 years or so some of the local streams ... A: I was unaware that salmon have been running in streams in that area. My question is " Are they ... | |
| Biology | 12/19/2005 |
| Q: What is the difference between in intelligence and wisdom in biological terminlology? A: I am afraid that I can only answer this in terms of my own thinking and that is that these are not ... | |
| Blood type | 12/19/2005 |
| Q: A friend mentioned some stuff I'm not completely sure about... that blood types A, B, O and AB have ... A: C. The "subcategories" you mention are,in genetic terms, genotypes. Keep in mind that for every ... | |
| Question about genetics | 12/14/2005 |
| Q: I was recently reading an article about "Ligers" and noted that if the father is a lion, then it ... A: The names tiger and lion do not have reference to the sex of the animal. It is just a matter of ... | |
| frogs | 12/12/2005 |
| Q: Why are frogs bellies soft and how much blood is needed to create one liter of urine? A: Two unrelated strange questions here. Why are frogs bellies soft? This is evolutionary biology and ... | |
| chileys | 12/11/2005 |
| Q: hope to find u in good health i have a question regarding the use of peppers generally chillies y we ... A: Nice to hear from you again abdul. The fiery substance in chilies is an alkaloid compound called ... | |
| Cystic Fibrosis | 12/6/2005 |
| Q: A couple who are both carriers of the gene for cystic fibrosis have two children who have cystic ... A: The trait is recessive. With two parent carriers the chance of having a child with it is 25%. Make ... | |
| I am in seventh grade and... | 12/2/2005 |
| Q: I am in seventh grade and doing a science fair project on how color affects people's ability to ... A: I have not heard of a study involving color perception and memory so I typed in "color and memory" ... | |
| assinment | 12/2/2005 |
| Q: Assignment: human genetics Problem # 1: People with albinism do not produce the pigment melanin. ... A: #1 Both parents are heterozygous normal Father ______________-________ Mother child ... | |
| Ecology | 11/29/2005 |
| Q: Kudzu, a leguminous vine native to Japan, is considered an exotic invader in this country but not in ... A: Different niche means different conditions and competition. Kudzu has an edge with less competitive ... | |
| Biology | 11/28/2005 |
| Q: Can you help me out with this question? 3. How does a shift in niche benefit competing species ... A: Consider the Galapagos finches. On one of the islands different finches were competing for seeds. ... | |
| i know all homoestatic functions... | 11/25/2005 |
| Q: i know all homoestatic functions of the body invlove feedback mechanisms. why is this vital for the ... A: It is vital that physiological activites are kept under control. Homeostasis is the maintainance of ... | |
| explain how antidiuretic hormone... | 11/25/2005 |
| Q: explain how antidiuretic hormone (ADH) controls the amount of water removed from the body. in very ... A: Water is removed from the body by osmosis through the distal tubules in the nephron. (Find a sketch ... | |
| Hormones in life. | 11/18/2005 |
| Q: What are the effects of hormones exactly? Are they really the main thing that controls the phazes of ... A: Apparently halting the aging process requires altering the factors that cause cellular damage. At ... | |
| Hormones in life. | 11/18/2005 |
| Q: What are the effects of hormones exactly? Are they really the main thing that controls the phazes of ... A: You have asked questions here that I could prepare a complete lecture on so I can respond only ... | |
| biology | 11/16/2005 |
| Q: If a grandmother has a mutation on 1 of her chromosome 11, how is it possible that her grandchild ... A: Keep in mind that genes are paired for a particular trait. If Grandma has a mutant gene at pair 11 ... | |
| Bio | 11/15/2005 |
| Q: . I have 2 questions from my assignemnt. It would be really helpful if u could help me with these. I ... A: 1. Lets let S= normal blood and s = sickle cell 1st cross Both heterozygous Ss x ... | |
| Bug attraction | 11/13/2005 |
| Q: I am a writer working on a novel. One of my characters is a scientist who studies the essence in ... A: Tannins actual act as a repellant to insects. You may consider pheromones as insect attractents. ... | |
| biology | 11/12/2005 |
| Q: What a yawn? I understand the biological purpose of sneezing, coughing, blinking--even burping. Is ... A: Would you believe that yawning is still a mystery. It was thought it increased O2 intake but this is ... | |
| Science Project | 11/11/2005 |
| Q: I'm a 7th grader doing a project on plants. I can't find information on my project. The title is ... A: I doubt if you will find any information about alcohol and pinto beans. I doubt if anyone has ever ... | |
| what are the sensors of the... | 11/11/2005 |
| Q: what are the sensors of the blood pressure called? where are they found, and how do they work? A: They are called baroreceptors and are located in the internal carotid sinus and in the aortic arch. ... | |
| AP Biology Science fair project | 11/10/2005 |
| Q: I'm having so much trouble picking out a question for my science fair project. Our teacher wants us ... A: A lot depends upon a couple of things. What are your interests and what are your resources? What ... | |
| Microorganism motility | 11/10/2005 |
| Q: I am working on a microbiology project and have run into some questions. I am wondering how you can ... A: I think the best way to determine this is to research the organisms that move with cilia and ... | |
| Giardia | 11/10/2005 |
| Q: I have been diagnosed as carrying an organism called Giardia. I have been prescribed several doses ... A: Are you sure the medicines are antibiotics? I don't believe that antibiotics are effective. There ... | |
| endocrine | 11/9/2005 |
| Q: I am wondering how to find out if a cell is an endocrine cell or just a normal cell? Thanks. A: I guess you mean an endocrine cell from a non endocrine cell. If the cell is separated from the ... | |
| Biology-excretion | 11/9/2005 |
| Q: please answer this question --- thanks very much ------------------------------------------------- ... A: Excretion is carried about mainly by diffusion in both plants and animals. Mammals use the lungs, ... | |
| biology | 11/6/2005 |
| Q: My fifth grade students would like to know how an animal can detect if something is edible for them ... A: I love the curiosity of 4th and 5th graders. Birds instinctively eat only certain things. It is ... | |
| biochemistry | 11/4/2005 |
| Q: what is the name of the substance that makes crabs turn red when cooked? A: It is not a substance that turns the crustacean red but what happens to the substance. The procees ... | |
| Bio assignment | 11/3/2005 |
| Q: I have an assignment question asking - Researchers at Jurassic Park found genes that code for fang ... A: I will show you how to set up the punnett square and you can fill it in. There are 8 possible ... | |
| biology | 11/3/2005 |
| Q: It's not an online course but a course at a community college. Here are a few more ?'s if you ... A: 1.A proteins are made on the rough ER 2.This on confuses me because of the term respiratory. ... | |
| Biomes. | 11/2/2005 |
| Q: my name is Sara and I'm doing a project for school in which i need to know about biomes. The ... A: First of all be sure you spell Taiga correctly. Secondly: The Taiga is the largest biome and ... | |
| biology | 11/2/2005 |
| Q: celery stalks that are immersed in fresh water for several hours become stiff and hard. If left in a ... A: First question E Second question e I don't like these questions. The first one is designed ... | |
| Homeostasis | 11/1/2005 |
| Q: Explain how integument maintains homeostasis in the body. A: The integument(skin) is involved it two areas of homeostasis: mainly thermoregulation and in some ... | |
| biology | 11/1/2005 |
| Q: what is the relevance of the 1st and 2nd laws of thermodynamics to energy utilization in living ... A: Energy is the driving force in all life activities. The First law tells us that the amount of ... | |
| Biology | 11/1/2005 |
| Q: how is protein used as a source of energy ? and explain how glycolysis is called fermentation ... A: Like all ingested organic foods protein is metabolized. It is deaminated (the NH2 cinverted to urea ... | |
| Human decomposition in seawater | 10/31/2005 |
| Q: We see many TV shows exploring shipwrecks, like the Titanic. When a body is lost at sea, or buried ... A: The soft tissues of a Human body are rapidly consumed in a manner of days by creatures such as ... | |
| DNA and more | 10/31/2005 |
| Q: I just can't seem to figure this out. Can you help? 1. In a contest over territory, two male deer ... A: I have gotten these same questions so many times and for the first question I usually give the same ... | |
| homework :( | 10/30/2005 |
| Q: I have a question that my science teacher gave to the class, and i can't find the answer anywhere! ... A: Simple. The child needs more protein than an adult. During the metabolism of proteins there is ... | |
| blood | 10/27/2005 |
| Q: desribe the main constituents of blood and their functions A: The liquid portion is the plasma. It contains the formed elements and proteins (antibodies) It ... | |
| blood | 10/27/2005 |
| Q: how is a red blood cell involved in moving a molecule of oxygen from the lungs to the tissue where ... A: The red cell contains hemoglobin which has the ability to carry O2. O2 enters the blood stream by ... | |
| Biomes; Tropical Rainforests | 10/27/2005 |
| Q: Hintz I am a sophomore at K.P. High School. I am working on a term project to make a fake brochure ... A: Te most well known indians of the Amazon are the Yanomami. To find out all about them go to ... | |
| Bacteria Growth Medium | 10/26/2005 |
| Q: My science fair project is to grow bacteria and fungi in a petri dish and seee how different things ... A: The best medium for growing bacteria for projects is nutrient agar which is indeed a beef medium. ... | |
| Cellular biology | 10/25/2005 |
| Q: How can the body sense when to convert glucose to glycogen and vice versa A: This is an excellant question and tough to answer. Basically we know that the body normally remains ... | |
| about cells | 10/25/2005 |
| Q: I need to know for a project what a ribosome(free) and ribosome(attatched) is it isn't in the book ... A: Ribosomes are pieces of messenger RNA. The mRNA is made in the nucleus by transcription of a piece ... | |
| biology | 10/24/2005 |
| Q: compare the size and internal structures of the gamete produced by a male animal to the gamete ... A: In other words you are asking the difference between sperms and eggs. As to size I can only ... | |
| Plant growth and different solutions | 10/24/2005 |
| Q: I am doing an experiment on how different solutions affect the growth of plants, such as soda, ... A: First of all remember that the solutions that you are using are all water with different ingredients ... | |
| proteins | 10/23/2005 |
| Q: If I went on a total protein diet, could I still have energy? At what point would the protein enter ... A: All ingested organic compounds are digested and proteins are broken down into amino acids. Some of ... | |
| thickness of blood | 10/23/2005 |
| Q: How could I determine if blood is thicker (denser) than water? A: You will have to get some blood The formula is as follows: Density = mass divided by ... | |
| protein diet | 10/23/2005 |
| Q: If I went on a total protein diet, could I still have energy? At what point would the protein enter ... A: Certainly. Proteins are digested into amino acids and The amino acids. The amino acids are ... | |
| amylase | 10/23/2005 |
| Q: why will amylase speed up the breakdown of starch but not cellulose A: Enzymes are very specific as to which substrat they work upon. It has to do with the chemical ... | |
| nutrition | 10/21/2005 |
| Q: describe the biochemical structure of major food sources of energy? A: The major food energy sources are carbohydrates. They all consist of Carbon, hydrogen and oxygen ... | |
| Cytoysis | 10/20/2005 |
| Q: What is cytolysis? Why and when does it occur? A: It's the destruction or dissolution of a cell. It occurs when worn out cells like red blood cells ... | |
| anatomy? | 10/20/2005 |
| Q: Why do many birds (especially domestic ie. chicken) have different collored meat/muscle (light and ... A: Many birds have two different types of muscle fibers. The breasts of turkeys and chickens have ... | |
| digestion | 10/20/2005 |
| Q: could you describe the events that would occur to some protein in a boiled egg, from the moment it ... A: All digestion is carried by digestive enzymes that are hydrolytic. i.e. They chemically add water ... | |
| DNA | 10/19/2005 |
| Q: How do you get from DNA > finished protein? Summarize the steps between getting from the coding ... A: DNA transcribes messenger RNA (mRNA) which becomes a template for the amino acid sequence. mRNA ... | |
| Biology | 10/19/2005 |
| Q: What is density and what is the best way to teach it? A: Basically it refers to how close together the molecules are: the closer together the more dense a ... | |
| microbiology | 10/18/2005 |
| Q: I am doing a science fair project on "which type of shoes are the best environment for bacteria to ... A: This sounds like an ambitious project and unique. I have never seen this done. Have you thought ... | |
| frog decomposition | 10/18/2005 |
| Q: I am researching for an exhibit, how a dead frog will decay in different environments and the ... A: Bloating would depend upon the presence of gas forming bacteria and it is likely it would bloat. ... | |
| respiration | 10/18/2005 |
| Q: descibe how a molecule of oxygen gets from the air outside the body into the blood capillaries of ... A: The diaphragm muscle relaxes lowering the pressue inside the lung cavity and air rushes in through ... | |
| Seed Germination of flowers | 10/17/2005 |
| Q: i have to write a paper on seed germination. I have to talk about what happens to seed after its ... A: I see your problem Tiffany. Have you utilized the library? Look for a college botany texbook. Try ... | |
| Genetics | 10/17/2005 |
| Q: 1) Predict possible genotypes and phenotypes of an offspring if you are blood type AB and you happen ... A: 1. AB x O AB x AB O A B ... | |
| Feckles | 10/16/2005 |
| Q: Do you know any experiments of freckles? I have a lot of freckles myself, so do you think there's ... A: I bet you are a redhead? Am I right? I have not seen any projects on the subject but freckles ... | |
| biology | 10/14/2005 |
| Q: Describe why water is such an ideal medium for the existence of life. A: Cellular activity depends upon exchanges of gases , nutrients and wastes and things must be in ... | |
| hiv vaccine | 10/14/2005 |
| Q: . it has been 20 years now since the appearence of the hiv virus. As a reference to polio, ... A: Although I am not an immunologist roy I believe that it has to do with the nature of the virus ... | |
| biology | 10/13/2005 |
| Q: why is water the basis of living organisms? A: The secret of a living system is in the cell mambrane and materials have to pass back and forth ... | |
| respiration | 10/13/2005 |
| Q: desribe how a molecule of oxygen gets from the air outside the body into the blood capillaries of ... A: The diaphragm expands lowering the pressure inside the chest cavity and air rushes in through the ... | |
| what is a disaccharide? give... | 10/13/2005 |
| Q: what is a disaccharide? give an example and state how man produces it. A: A disaccharide is a carbohydrate consisting og two monosaccharide units. It's chemical formula is ... | |
| termites | 10/12/2005 |
| Q: How does a termite feel? How many times will a termite molt? Can it hear? Has it adapted over the ... A: Termites have antennae for "feeling" I do not know how often they molt but I suspect it depends ... | |
| Meiosis leads to variation | 10/11/2005 |
| Q: 1. What do we mean by variation? 2. Why is variation within a species so important? Thanks A: With the exception of clones no two living things are exactly alike. The things that are different ... | |
| biology cycles | 10/10/2005 |
| Q: I need to make a drawing combining carbine, water and nitrogen cycles. I have read in my book and ... A: I hope your book diagrams these cycles. If not look up each cycle separately at google and copy ... | |
| Bacteria | 10/9/2005 |
| Q: Ok, here goes... A population of bacteria are very sensitive to light. They live in a lake that is ... A: Interesting problem Merrick. Here is what I suspect. 1. Natural selection. At least one of the ... | |
| biology | 10/9/2005 |
| Q: I would appriciate the help. 1 how is energy transferred through the chloroplast and mitochondria? ... A: 1. This is a long answer. Look up the kreb cycle and the cycling of ADP and ATP 2.The peruvate ... | |
| Stomata | 10/9/2005 |
| Q: I'm wondering why the lower epidermis contains more stomata than the upper epidermis? As well, I'm ... A: It has to do with the structure of the leaf layers. The spongy layer is located closer to the lower ... | |
| WORMS IN MY SINK | 10/7/2005 |
| Q: I am also having a problem with little worms in my sink. I read another submission on this subject ... A: I feel sure that these worms are maggots from the flies you see. Pour about a half a bottle of ... | |
| Photons and Mole of glucose | 10/7/2005 |
| Q: How many moles of glucose can I make from: 1 mole of red photons (680nm) 1 mole of blue photons ... A: I returned to this question, Sam, after thinking about it because I believe it to be unanswerable. ... | |
| biology-gram stain techniques | 10/6/2005 |
| Q: my question is .......... Can iodine be added before the primary stain in a Gram stain? and also ... A: No The iodine sets the violet stain on Gram positives. You could omit the safranin counter stain ... | |
| ASTHMA!! | 10/6/2005 |
| Q: i really need informations on this would i say breathing infection. Is it really an infection? what ... A: You really do need a lot of information yvonne. Asthma is not a respiratory infection nor is it ... | |
| science fair question | 10/6/2005 |
| Q: I'm taking biology and we're going to be doing a science fair and I need a question. My question was ... A: You need a different question here. There is no way to measure what your pet is communicating. Try ... | |
| general biology | 10/5/2005 |
| Q: Why does concentrated salt water kill plants? Why do leaves turn yellow in autumn ? A: When the roots are bathed in a salt solution water leaves the plant by osmosis dehydrating it. The ... | |
| Biology Lab | 10/4/2005 |
| Q: Walter Hintz, I have scoured my lab manuel and text and just cant find the answer so I need ... A: There is something wrong here. You first mention biuret and then benedicts. Biuret tests for ... | |
| Evolutionary speaking | 10/3/2005 |
| Q: Evolutionary speaking why do females get more vascularity to the skin? ( more blood to the skin?) A: There are two considerations here Alivia. First I am unaware that this is the case. I believe ,in ... | |
| Help | 10/2/2005 |
| Q: Could you help me by defining the following terms? electrical shell Family of elements Frictional ... A: The electric shell is mostly likely referring to the position of the electrons in orbit. Certain ... | |
| flaws. | 10/2/2005 |
| Q: Are there any known "flaws" in the Human body? This is not a religion-based question but let me ... A: Good question Chris; It rather depends on what you mean by flaws.As to specific "flaws" I ... | |
| The world as we know it. lol | 10/1/2005 |
| Q: Ok, until my mind starts wondering again here is my last question to send your way. lol. If a ... A: A human in space would not be crushed but would due to the cold temperature and lack of oxygen ... | |
| The world as we know it. lol | 10/1/2005 |
| Q: So people have turned lead or other materials into other materials such as gold, or even hydrogen? I ... A: I think you have misinterpreted what I said about alchemy. No one has turned lead into anything or ... | |
| Organ Transplants | 9/30/2005 |
| Q: I have heard that after a certain number of years, I think I remember seven, all the cells in the ... A: This is a question that I have never considered before. First of all the seven year idea is a ... | |
| Biology | 9/30/2005 |
| Q: I have two questions that I am unsure about. Thank you. 1. The properties of a molecule determine ... A: The way these questions are worded you could obviously just answer yes or no but I doubt if that is ... | |
| The world as we know it. lol | 9/30/2005 |
| Q: I have yet another question that is neither here nor there. lol. My question is about the makeup of ... A: I cannot think of a code much more basic than that of DNA and RNA. There are only 5 symbols,64 ... | |
| The world as we know it. lol | 9/30/2005 |
| Q: I have yet another question that is neither here nor there. lol. My question is about the makeup of ... A: You are really deep James. Your philosophical approach to science is interesting to say the least. ... | |
| Graph | 9/29/2005 |
| Q: Well I have this graph to plot for an experiment that we did today in class.Let me list out the ... A: On the vertical axis plot the units of measure (mean distance= average of tries) On the horizontal ... | |
| evolution | 9/29/2005 |
| Q: I have a question about the mechanism of evolution. I have been studying the creation/evolution ... A: Of course I do not have a clear explanation of how speciation occurs nor does anybody else. It would ... | |
| reading bio papers | 9/27/2005 |
| Q: I'm an undergraduate senior in biology just starting to do research and am having quite some ... A: I have been a biologist for a long time now and I know what you mean. You are probably trying to ... | |
| Listerine | 9/27/2005 |
| Q: I am taking a microbiology class and we performed a lab experiment where we licked an agar plate. ... A: I think we can assume that the Listerine claims are false. Apparently the Listerine did not kill ... | |
| Ntirogen Cycle | 9/25/2005 |
| Q: hintz, how do i describe the following cycle in nature by using a word bank? (nitrogen fixation, ... A: This can be a big project Zach The first problem can best be done by diagraming the cycle. ... | |
| large intestine | 9/25/2005 |
| Q: WHY IS WATER REABSORBED IN THE LG INTESTINE, IS ATP NECCESARY FOR THE WATER TO BE REABSORBED AND ... A: I really do not like "why" questions carolyn. Your first question is best answered by stating ... | |
| science project cleaner mouth | 9/24/2005 |
| Q: I am in grade 6. I am interested in doing a project on who's mouth is cleaner mine or my dogs. I ... A: I don't remember what or when I gave advice to Aubrea but I would be glad to help you. The first ... | |
| Hello | 9/24/2005 |
| Q: There is one website I believe of a few that make mension of it. ... A: I will keep an open mind but I believe that this article is designed to sell an appliance. The ... | |
| Hello | 9/24/2005 |
| Q: Followup To Question - This question might be way out there. But is there a way of measuring the ... A: It is quite obvious that you are a thinking individual James. I started thinking about this and if ... | |
| Hello | 9/24/2005 |
| Q: This question might be way out there. But is there a way of measuring the atomic weight of fullsized ... A: As I stated before the atomic mass of your arm in a gravitational field (On Earth's surface) is the ... | |
| I am doing a science project... | 9/23/2005 |
| Q: I am doing a science project on how different types of music effects the growth of beans. Do you ... A: Many years ago I some students in biology class who worked on projects like this. Their results ... | |
| Hello | 9/23/2005 |
| Q: This question might be way out there. But is there a way of measuring the atomic weight of fullsized ... A: Interesting question. The term atomic weight actually refers to the atomic mass and weight is the ... | |
| biology | 9/22/2005 |
| Q: In the lungs is carbon more concentrated in alveoi or in the blood? A: Are you asking about carbon or carbon dioxide? It makes a difference. The alveoli contain air and ... | |
| biology | 9/21/2005 |
| Q: 1- What is an advantage of a peer review of a scientific paper? 2-what are some of the things ... A: These are pretty general questions Stefanie, and the answers seem quite obvious. 1. Any type of ... | |
| helicobacter pylori | 9/21/2005 |
| Q: how does helicobacter pylori attack and spresd? What is the genus and species name for helicobacter ... A: Helicobactor pylori is the scientific name. Helicobactor is the Genus and pylori is the species. ... | |
| male anatomy | 9/21/2005 |
| Q: DO bulls have bone or cartilage in their penis? I have been told dogs do - is this true? WHat ... A: Yes they do. Most mammals have a bone in the penis including dogs. In fact a walrus has one that ... | |
| Eating leaves | 9/17/2005 |
| Q: Why don't humans (generally) eat leaves? You know, the kind that grow on trees and bushes, not the ... A: An interesting question Neal and one that I have never had before. Actually we do use all kinds of ... | |
| Write the letter of the word that completes the sentence | 9/15/2005 |
| Q: I need your help on some problems that Im having, all you have to do is write the letter of the word ... A: It seems to me that these are questions that you can easily find answers to in your book. I will ... | |
| Answer the question in complete sentences | 9/15/2005 |
| Q: I need your help on some problems all you have to do is answer the question in compltete sentences. ... A: 1. Amphibians have a very thin skin and would dry out if not in the water most of the time and they ... | |
| biology | 9/14/2005 |
| Q: Are protists engaged in more complex activities than the cells of a multicellular organism such as ... A: To me this is a tough question Suzann because I believe that complexity is a relative term. Let's ... | |
| a concept map | 9/14/2005 |
| Q: a concept map that shows the three subphylum of anthropods, and include two samples for each ... A: Since a concept map is a diagram I cannot construct it on a computer but the three subphyla are ... | |
| meiosis l and meiosis ll | 9/13/2005 |
| Q: i wanted to know why there is no duplication of the DNA between meiosis l and meiosis ll? i looked ... A: The whole purpose of a mitotic division is reduction division and the production if gametes. ... | |
| Organic chemestry | 9/12/2005 |
| Q: Ok well i have a few questions im am just plain stuck on... 20. Write the basic chemical formulas ... A: 20. There are many different compounds here so there is no way I can write all these formuli but the ... | |
| anatomy | 9/12/2005 |
| Q: Why are veins blue? A: I will start off by telling you right away that contrary to popular opinion they are not blue ... | |
| kidney stone | 9/12/2005 |
| Q: hope to find u in good health. i have a question regarding the presence of stone in kidney.what is ... A: Nice to hear from you again Abdul: These stones are formed by a buildup of crystals that separate ... | |
| Biology | 9/11/2005 |
| Q: How do cells know how to make the long strands of proteins? A: Great question Ronnie; It is unanserable because it implies that the cell is involved in some kind ... | |
| Biology | 9/11/2005 |
| Q: For my biology class, we have to do a little scavenger hunt. I was wondering if you knew what any of ... A: Nice assignment Elizabeth Bryophyte- Find a piece of a moss Plant lipid- Lipids are oils and ... | |
| Biology | 9/6/2005 |
| Q: Why can't insulin producing bacteria be made to grow on liver? Answer - Insulin is produced by ... A: What I am saying is that large molecules must be broken down by hydrolysis into glucose, fatty acids ... | |
| information on Tropical Forest Biomes | 9/5/2005 |
| Q: I have to do a report on a biome of my choice (tropical forest) for my AP biology course at Ocean ... A: There are variations but if you visit the Amazon Rain forest you would find: Hot and humid with ... | |
| Biomes | 9/4/2005 |
| Q: I know that this is more ecology, but it's for my AP Biology class... I am creating a travel ... A: There are a number of travel agencies that can give you this information. Try this site ... | |
| I'm trying to learn how to make or explain a food chain | 9/4/2005 |
| Q: I'm having problems on learning how to make a food chain A: This is easy Latisha. A food chain tells how energy passes from one level to another. At the ... | |
| Arctic Tundra Biome | 9/2/2005 |
| Q: my name is Liandra Presser and I'm taking AP Biology this coming school year. We were assigned an ... A: I am a jungle person myself but tundra is also interesting and less complicated. I have been to ... | |
| Anatomy | 9/2/2005 |
| Q: I have a question that my anatomy teacher (with a PhD in anatomy) could not answer (and perhaps ... A: Like your anatomy professor I have no idea why this is so. In fact I did not even this was the ... | |
| Tropical Forest Biome Interesting info. | 9/2/2005 |
| Q: I am doing a project for AP Biology and need some interesting facts/information on Tropical Forest ... A: There are some differences in tropical rain forests or jungles depending on where they are. The ... | |
| Symbiotic Relationships | 8/31/2005 |
| Q: What is an example of mutualism, commensalism, and parasitism? A: With Mutualism both organisms benefit. The algae and fungi of a lichen is an example With ... | |
| Viruses | 8/31/2005 |
| Q: I know that antibiotics are used to treat bacterial infections and don't work on viruses, but could ... A: It has to do with the structure and physiology of the bacteria and the virus particle. Antibiotics ... | |
| Tropical RainForest | 8/29/2005 |
| Q: Will you please send me some information about the food web of the tropical rain forest? I looked ... A: This is difficult because all tropical rain forests(jungles) are not alike. The central american ... | |
| biochemistry | 8/28/2005 |
| Q: we are a group of biology teachers , we come from Jordan & we are teaching at high school. we would ... A: Each of these topics actually involves a complete unit. Photosynthesis: Some background knowledge ... | |
| life | 8/27/2005 |
| Q: 1) What is the exact defination of life? I want a detailed answer. I have look for it in stanford ... A: 1. This is really a very difficult question and cannot really be answered because it is to big. But ... | |
| biology | 8/27/2005 |
| Q: I hope you help me by answer this question what is the virus? A: A virus is a non-living infectious agent that attacks living cells. Structually it consists of a ... | |
| Classifications of Plants and Animals | 8/27/2005 |
| Q: Walter, I'm glad that I had found you. It's been two days we've been surfing the internet but with ... A: Wow! 50 organisms by monday. I don't know how much I can help you with this except to tell you ... | |
| amoeba | 8/26/2005 |
| Q: How does amoeba detects the presence of food in its surrounding ? Is amoeba also conscious of what ... A: The amoeba is sensitive to changes in the watery environment surrounding it. A change in the ... | |
| Answer in complete sentences | 8/24/2005 |
| Q: My name is Deann and Im just starting 8th grade and have some difficult problems that I hope you can ... A: 1. Contour feathers are flight feathers and a flightless bird has no use for them so the ostrich has ... | |
| proteins in the lipid bilayer | 8/24/2005 |
| Q: I have a project due but I cannot find out what the carbohydrate chain does in the cell, more ... A: Carbohydtare chains join with proteins to form glycoproteins and lipids to form glycolipids. Both ... | |
| Number of Organs in Human Body | 8/24/2005 |
| Q: How many organs are there in the human body? I tried counting them system by system and excluding ... A: This is a problem. Medical dictionaries define an organ as a relatively independent part of the body ... | |
| Coniferous Forest Biome | 8/23/2005 |
| Q: I will be a senior this year and am trying to complete a summer project on the coniferous ... A: This sounds like a great project. However the information you seek here is readily available in any ... | |
| Write the question out in complete sentences | 8/22/2005 |
| Q: All you gotta do is write the answer out in complete sentences. 1. Why must all amphibians spend at ... A: 1. In the early stages of life amphibians breath with gills instead og lungs and must stay in water. ... | |
| biology project DUE THIS FRI | 8/19/2005 |
| Q: Followup To Question -ok so diz iz the assiment:design an experiment to prove an hypothesis you ... A: If you do what I told you you will have a designed experiment and will have followed the scientific ... | |
| biology project DUE THIS FRI | 8/19/2005 |
| Q: Followup To Question - I NEED HELP ON SOME IDEAS OF A PROJECT THAT HAS TO DO WITH BIOLOGY. IM IN ... A: Ok Nisha. Now we can do something. 1. State a hypothesis Like this "Girls are better at ... | |
| biology project DUE THIS FRI | 8/18/2005 |
| Q: I NEED HELP ON SOME IDEAS OF A PROJECT THAT HAS TO DO WITH BIOLOGY. IM IN THE 10TH GRADE.. I REALLY ... A: This is not good nisha. If need a hypothesis than you need a problem and be able to test your ... | |
| Help! | 8/18/2005 |
| Q: 1. According to the first law of thermodynamics, ____ can't be created or destroyed. A. sugar B. ... A: 1 B and D The 1st Law speaks to both matter and energy. This is a bad question 2 A 3 A 4 A 5 B ... | |
| biology project DUE THIS FRI | 8/17/2005 |
| Q: I NEED HELP ON SOME IDEAS OF A PROJECT THAT HAS TO DO WITH BIOLOGY. IM IN THE 10TH GRADE.. I REALLY ... A: I have to know a little more and you are short of time. i really hope that Friday is the deadline ... | |
| Biology-- Review of the Living Environment | 8/16/2005 |
| Q: Well, you see, i've never taken a biology course, this is my first time. It's actually a packet sent ... A: 1 4 2 all are correct 3 3 and 4 are correct 4 1 These are really bad questions. Asking ... | |
| Biology-- Review of the Living Environment | 8/15/2005 |
| Q: 1. As a direct result of th elife process called cellular respiration in humans, (1)liquid wastes ... A: 1 3 2 2 3 1 4 2 You said you had not had a biology course in a long time and suddenly you are ... | |
| Biology-- Review of the Living Environment | 8/15/2005 |
| Q: 1. Energy for use in cells is stored in the form of (1)chemical bond energy. (2)physical energy. ... A: 1 1 2 2 3 1 4 1 Keep them coming Elizabeth Unfortunately I think that I am only helping you pass a ... | |
| eye colour | 8/12/2005 |
| Q: I have a friend who's 25 year old brother's eye colour has suddenly changed from brown to green..is ... A: First of all since it happened it is, of course. possible. Though unusual, changes in eye color do ... | |
| photosynthesis | 8/10/2005 |
| Q: I am trying to do a home experiment which reveals starch in the leaves of variegated and non ... A: You are doing a number of things wrong here. First of all you should boil the leaf in alcohol to ... | |
| Nervous system | 8/10/2005 |
| Q: friend. No matter how cheesy this sounds - I'd still like to thank you for offering your services as ... A: It would appear you have come up with some philosophical questions. Since you are a product of a ... | |
| Effort | 8/7/2005 |
| Q: Is biology hard to take is it like complex can you give the meaning of biology or something thanks A: Biology is the study of life. There are many branches of biology including the study of animals, ... | |
| biology | 8/7/2005 |
| Q: i am working for a science fair project,i wish to know if i can produce electricity from trees so as ... A: I had never heard of this idea so I searched at google and found out that there is no way to produce ... | |
| human body | 8/7/2005 |
| Q: My son wants to know why we have fingernails and toenails. A: At first this seems like a simple question to answer but unfortunately "why" questions are very ... | |
| Bloodtyping and Nutritional Information | 8/5/2005 |
| Q: I have been asked to do a science class in our private school, and I was wondering what it takes to ... A: In order to type blood you need blood typing sera. All biological supply companies have blood typing ... | |
| Avian physiology | 8/5/2005 |
| Q: Very right sir but even when hens are kept with roosters what is the probability that every egg is ... A: I am afraid that I do not know these figures but it seems that roosters mate constantly with hens ... | |
| Spiders' Strength | 8/1/2005 |
| Q: How strong are house spiders-how much can they lift or pull in pounds per square inch? Sincerely, ... A: I do not know of anybody who has studied this Jason. There are claims that spiders have great ... | |
| viral infection | 7/29/2005 |
| Q: How do the structures of bacteria, viruses and mammalian cells differ? A: Bacteria are prokaryotes. They have a cell wall but no organizes nucleus nor organelles Mammalian ... | |
| Link between metabolism and aging | 7/28/2005 |
| Q: I would like to know if the speed in which a persons metabolism could affect the rate at which ... A: There appears to be a relationship between metabolic rate and aging. Studies have been conducted ... | |
| the interelationship between man, insect and his environment | 7/27/2005 |
| Q: the interelationship between man, insect and his environment A: I could really go overboard answering this kind of a question. A book could be written about it, ... | |
| biology | 7/26/2005 |
| Q: can u please tell me what mega-fauna is and what is the current debate issue regarding research into ... A: This term literally refers to large mammals and in todays usage refers to extinct animals. There was ... | |
| Soy Isoflavones | 7/26/2005 |
| Q: recently I saw a TV program claiming that based on Dr. Adlercreutz's experiments on soy isoflavones, ... A: I know these compounds have been used in some therapies treating menopause but reactivating growth ... | |
| plant biology | 7/22/2005 |
| Q: please could you answer this asap! i understand how plants suck up water from their roots,but after ... A: The plants you were working with were vascular plants. That means that the have special cells ... | |
| observing bacteria | 7/22/2005 |
| Q: If you get a water sample, how do you know what kind of substances are in it? And how much bacteria ... A: What you can see with a microscope depends a lot on how polluted the water sample is. Cloudy pond ... | |
| species' extinction | 7/20/2005 |
| Q: Why localized distribution and overspecialization can increase a species' probability of becoming ... A: If a species is confined to a smaller area there is a narrowing of the gene pool making it more ... | |
| biology | 7/20/2005 |
| Q: Explain how levels of organisation in a hierarchical system assist classification A: Hierarchical systems are usually based upon going from the simple to the complex: from lower levels ... | |
| Ribs | 7/19/2005 |
| Q: How many ribs does a human have? My nephew had talked to his grandmother who is very religious and ... A: I am afraid that Grandma is wrong. The normal human body has 24 ribs, twelve on each side. This is ... | |
| horseshoe crabs | 7/17/2005 |
| Q: Category: Oceanography has no members, maybe you can help me. I often keep horseshoe crab shells. ... A: I have done a lot of study and work with oceanography. I have never tried to process horseshoe ... | |
| cloning | 7/17/2005 |
| Q: Why is it possible for a gene from any organism to function in another organism? Is it because all ... A: Genes from one organism can function in another only after it is incorporated into the DNA of the ... | |
| Science Fair Projects | 7/16/2005 |
| Q: Would would be a good, but advanced idea of a science experiment for a science project. I will not ... A: Answer these questions and get back to me. What grade level Which branch of science (biology, ... | |
| Biology | 7/16/2005 |
| Q: Hey Walter, have a quick question about an experiment whose purpose is to study the relative effects ... A: I can understand your confusion with all those Cs As and Gs, Josie Your results have come crossing ... | |
| Biology - The Respiratory system | 7/14/2005 |
| Q: How is our repiratory system designed to reduce water loss? I've looked through my text book and the ... A: Actually Julieann the lungs function to contribute to 10-20 % of the bodies total water loss through ... | |
| A normal gene - Transcription and Codon | 7/14/2005 |
| Q: Durnerin here AGAIN! I'm pretty confused on the tata box and transcription. MyIf a point mutation ... A: I am sorry but I have not been keeping up with the constant changes in molecular genetics. The tata ... | |
| Energy | 7/13/2005 |
| Q: please could you tell me what happens to the energy of a creature when it dies? Thank you A: The Law of Conservation of matter and energy tells us that matter and energy cannot be created nor ... | |
| Brain's capacity | 7/11/2005 |
| Q: Really? So what the large part do in our life? Do we need it at all? How to use the brain more? ... A: There is still a lot of mystery about the human brain. People can survive when one whole side of ... | |
| acorn growth | 7/10/2005 |
| Q: I have lots of oak trees in a field next to us which drop their acorns all over the place. However ... A: This is a very interesting observation Chris and one that I never thought about. My back yard is ... | |
| sex-linked recessive traits | 7/9/2005 |
| Q: sex-linked recessive traits are expressed in all males but not necessarily in all females. Why is ... A: The Y chromosome in males does not carry genes so if a recessive trait occurs on the X chromosome ... | |
| plasmids | 7/9/2005 |
| Q: Followup To Question - Has anyone noted plasmids in cyanobacteria and more importantly, in ... A: I discovered a paper describing the mitochondrial DNA as being in 5 to 10 rings These rings contain ... | |
| Punnet Chart | 7/9/2005 |
| Q: How can I make a punnet chart showing the crossing of (P1)2 jackalopes with long ears resulting in ... A: The way the question is worded you cannot show a punnett square where ALL have short ears. You could ... | |
| plasmids | 7/9/2005 |
| Q: Has anyone noted plasmids in cyanobacteria and more importantly, in chloroplasts? Answer - ... A: Of course both mitochondia and chloroplasts have DNA which lends credence to endosymbiosis but as ... | |
| Digestion | 7/7/2005 |
| Q: I found your ad on the web and would like to answer my question. Let me introduce myself to you a ... A: I am not sure what bio-iformatics is all about but am always pleased to meet somebody interested in ... | |
| microbiology | 7/4/2005 |
| Q: I heard about an instrument called a germometer on CNN. I believe it was/is used to detect and ... A: I had never heard of this product John so I did a litle research. The germometer refers to a ... | |
| drawing blood | 7/4/2005 |
| Q: When drawing blood, why is the needle always placed in veins? And why in the direction blood is ... A: There are a couple of reasons that venous blood is drawn Wendy. One is that the diagnostic tests ... | |
| viral meningitis outbreak | 7/4/2005 |