| Subject | Date Asked | Expert |
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| mitosis and meiosis | 11/21/2009 | Chris Bemes |
Q: What's the difference between mitosis and meiosis?
A: Here are a couple of websites with some good information that will help you better understand the ...
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| Biogeochemical cylces | 11/19/2009 | Walter Hintz |
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 ...
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| what is this worm? | 11/17/2009 | Dana Krempels, Ph.D. |
Q: I've found this in the garden soil (actually, i was looking for antlion). they are about 10 mm long. ...
A: It's hard for me to tell from the picture, but if there are six legs very near the front of the ...
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| Enzyme Catalysis | 11/15/2009 | John Locke |
Q: How does the structure of an enzyme relate to its function and what factors can affect the initial ...
A: Enzymes function as biological catalysts, meaning that they increase the rate of biological ...
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| Oily skin | 11/15/2009 | Dana Krempels, Ph.D. |
Q: Hi i want to ask you about oily skin that sometimes our skin becomes oily specially nose area which ...
A: Mammals all have oil glands that keep the skin lubricated and supple. It may seem excessive at ...
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| Circulatory route take by RBC from site of production. | 11/14/2009 | John Locke |
Q: Describe the circulatory route taken by a red blood cell from its site of production, in some part ...
A: Red blood cells (RBCs) begin life in the bone marrow--mostly in the ribs, vertebrae, and pelvis in ...
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| can i ask a question sir ? | 11/14/2009 | Walter Hintz |
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 ...
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| Bacteria | 11/13/2009 | Chris Bemes |
Q: I am going to be doing a experiment on the effect of domestic disenfectants on bacteria, I am ...
A: There are many different types of bacteria that would fit the description of being ubiquitous (found ...
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| Science Projects | 11/12/2009 | Walter Hintz |
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 ...
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| Biology | 11/12/2009 | John Locke |
Q: Does Euglena have Mitochondria? I know most of them have Chloroplasts, and that supplies the the ...
A: Euglena does indeed have mitochondria, as do all eukaryotic organisms. Mitochondria serve the same ...
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| Chicken breast worms | 11/10/2009 | Dana Krempels, Ph.D. |
Q: Dana, Yesterday my folks bought two barbeque chickens from the local supermarket we ate one, and ...
A: There are other nematode species in which the male and female exist in a constant state of coitus, ...
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| pregnancy | 11/10/2009 | Dana Krempels, Ph.D. |
Q: my period started today so which day will i ovulate?
A: Every woman's cycles are a little bit different. But on the average, ovulation occurs approximately ...
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| pregnancy | 11/10/2009 | John Locke |
Q: my period started today so which day will i ovulate?
A: The menstrual cycle lasts around 28 days in most cases, with a variation of about one week. Within ...
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| mitosis | 11/9/2009 | John Locke |
Q: In mitosis, how many chromosomes do you have when you have finished replicating all of the DNA? In ...
A: Understanding the terminology related to mitosis/meiosis can be confusing and difficult, but a solid ...
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| mitosis and meiosis | 11/9/2009 | Walter Hintz |
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 ...
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| biology- chromosomes (mitosis &meiosis) | 11/8/2009 | Walter Hintz |
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 ...
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| genes | 11/5/2009 | Dana Krempels, Ph.D. |
Q: 1- Do the genetic factore have any affects on prtection from A.I.D.s (H.i.v) illness ? 2- do the ...
A: 1 - Yes, very likely. Although most people are susceptible to infection by HIV, there are a few ...
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| help...reallly important | 11/5/2009 | John Locke |
Q: Cumulative Oxygen Consumed (mL) ______________________________________________ Time ...
A: I'm not entirely sure what you're asking here, but I'll tell you what I think. If you need to plot ...
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| eye colour genetics | 11/4/2009 | Dana Krempels, Ph.D. |
Q: I have a question about eye colour. I have blue eyes but my father has brown eyes and my mother has ...
A: Human hair, eye, and skin color are very complex and difficult to predict, because each of these ...
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| Define 'Preformed' Organic Molecules as Applies to Heterotrophs | 11/4/2009 | John Locke |
Q: Can you please define 'preformed,'as applies to heterotrophs...obviously we can't convert sunlight ...
A: Your interpretation is correct: heterotrophs are defined by their consumption of complex organic ...
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| digestive system | 11/4/2009 | Walter Hintz |
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 ...
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| the digestive system | 11/4/2009 | Walter Hintz |
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 ...
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| knee problems in Zulu people | 11/3/2009 | Dana Krempels, Ph.D. |
Q: i was wondering if you could point me in a direction or help me out with your knowledge,we were ...
A: Environment and genetics both play a role in the reslience of any body part to injury. But I am not ...
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| Urine | 11/3/2009 | John Locke |
Q: How is the urine of someone with damage to their cells in the glomerulus and glomerular capsule ...
A: The function of the glomerular cells is to provide a first-pass filter for the blood plasma as it ...
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| Diabetes | 11/3/2009 | Dana Krempels, Ph.D. |
Q: How Is Diabetes related to Biology?
A: Diabetes is a disorder in which the body does not properly process sugar, and it can manifest in ...
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| Length of time until new genetic mutations reveal themselves | 11/1/2009 | Dana Krempels, Ph.D. |
Q: how long does it take for new/unique genetic expressions to reveal themselves in populations of ...
A: That depends on the mutation. A dominant allele can manifest in the first generation, even if it's ...
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| Circulation | 10/31/2009 | John Locke |
Q: First let me say I am grateful to have found this website and appreciate your expertise and ...
A: Your question is a fundamental one about the anatomy and physiology of the heart, and it's important ...
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| Viable offspring from transgenic organisms | 10/31/2009 | Dana Krempels, Ph.D. |
Q: I would like to ask whether transgenic organisms (plants or animals) created in the lab usually ...
A: Most transgenic organisms created in the laboratory are perfectly capable of reproducing. The ...
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| bilogy | 10/30/2009 | Walter Hintz |
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 ...
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| Hooves | 10/29/2009 | Dana Krempels, Ph.D. |
Q: How do hooves grow and how does the environment effect on the sizes of the hooves? Thanks
A: Hooves are homologous to our fingernails (they develop from the same embryonic sources in the ...
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| interview | 10/27/2009 | Walter Hintz |
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 ...
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| biology and physiology | 10/27/2009 | Walter Hintz |
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 ...
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| Blonde Asians | 10/27/2009 | Dana Krempels, Ph.D. |
Q: I was wondering how myself and some (4 of 8) siblings ended up with natural blonde hair when our ...
A: Human hair, eye, and skin color are very complex and difficult to predict, because each of these ...
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| My grandchild's hair and eye color? | 10/26/2009 | Dana Krempels, Ph.D. |
Q: My daughter-in-law's eye color is green with light brown/blond hair. My son has blue eyes and red ...
A: Human hair, eye, and skin color are very complex and difficult to predict, because each of these ...
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| biology- energy | 10/25/2009 | Walter Hintz |
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 ...
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| question about mutation | 10/24/2009 | Dana Krempels, Ph.D. |
Q: Good morning There is a great question which confuses us in schools about reasons of multion ( ...
A: I believe you are referring to mutation, any change in the DNA that encodes the instructions for ...
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| SLEEPING!! | 10/23/2009 | Dana Krempels, Ph.D. |
Q: I WANT TO ASK WHY DO WE AUTOMATICALLY FEEL SLEEPY IN THE NIGHT?? IF WE SLEEP ALL THE DAY YET WE FELL ...
A: Almost all living organisms experience what's known as Circadian rhythms. These are natural cycles ...
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| Biology- Genetics | 10/23/2009 | Dana Krempels, Ph.D. |
Q: I am curious to know what colour hair our baby will have My gradnfather (mums dad) was a red head. ...
A: Human hair, eye, and skin color are very complex and difficult to predict, because each of these ...
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| Bee vision colour yellow | 10/23/2009 | Dana Krempels, Ph.D. |
Q: I have read that bees can see blue and ultraviolet but not red, which probably appears as black to ...
A: Ah, sorry I misunderstood your question. The arthropod eye is completely different from that of a ...
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| Baby's hair color | 10/21/2009 | Dana Krempels, Ph.D. |
Q: Krempels I am curious as to what color hair my baby may possibly have. I have medium blonde hair ...
A: Human hair, eye, and skin color are very complex and difficult to predict, because each of these ...
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