Biology/Questions
| Subject | Date Asked | Expert |
| Vinegar and water | 2/8/2012 | Walter Hintz |
| 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 | Walter Hintz |
| 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 | Walter Hintz |
| 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 | Walter Hintz |
| 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 ... | ||
| Large Punnett Square Problems | 1/18/2012 | Dana Krempels, Ph.D. |
| Q: I finished a bio quiz today, where we were asked to do very large Punnett square problems, even ... A: Well, that was sort of a trick question. If the genotype was really AaBBCCDDEE, then there are only ... | ||
| Cloning: hair follicles? | 1/14/2012 | Dana Krempels, Ph.D. |
| Q: How far along are scientists in the cloning department? I think some people claim they actually have ... A: James If we knew what makes certain types of structures difficult to clone, then we probably could ... | ||
| Cells: Cytoplasm gel vs. sol | 1/10/2012 | Dana Krempels, Ph.D. |
| Q: ?What is mean by sol and gel please help me thanks:)I would be greatly appreciate if you do early ... A: A cell with cytoplasm in sol form has broken down the actin filaments that give the cell its ... | ||
| Cloning: hair follicles? | 1/9/2012 | Dana Krempels, Ph.D. |
| Q: How far along are scientists in the cloning department? I think some people claim they actually have ... A: Individual cells and things like hair follicles are not really the realm of cloning so much as ... | ||
| biology best | 1/8/2012 | Dana Krempels, Ph.D. |
| Q: sir,i want ask you some question..first,how to be a zoological?..and second question is how much ... A: Wildlife conservation, ecology, so many fields in which not just zoology, but plant/animal ... | ||
| biology best | 1/8/2012 | Walter Hintz |
| 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 ... | ||
| Lysenkoism | 1/5/2012 | Dana Krempels, Ph.D. |
| Q: What is Lysenko and why so much hue and cry on it? A: To learn more about what Lysenkoism is, please read: http://en.wikipedia.org/wiki/Lysenkoism But ... | ||
| Are some people born with both a penis and a vagina? | 1/3/2012 | Dana Krempels, Ph.D. |
| Q: Are some people born with both a penis and a vagina? A: So far, there has never been a known case of a true human hermaphrodite, i.e., an individual with ... | ||
| Human Male and Female voice | 1/2/2012 | Dana Krempels, Ph.D. |
| Q: A Man can imitate female voice.But a female cant imitate a male voice.Why? Thanks Syam A: It's not true that no females can imitate a male voice. It depends on the individual, and her ... | ||
| How to be a zoologist? | 12/31/2011 | Dana Krempels, Ph.D. |
| Q: sir,i want ask you some question..first,how to be a zoological?..and second question is how much ... A: The best way to become a zoologist in any country is to get a Bachelor of Science degree from an ... | ||
| science fair project | 12/26/2011 | Walter Hintz |
| 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 | Walter Hintz |
| 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 ... | ||
| GMO Foods | 12/20/2011 | Dana Krempels, Ph.D. |
| Q: I buy my vegetables at Krogers Supermarket. They aren't in the "Organic Vegetable" section and I've ... A: At the moment, no one is required to label foods as containing GMOs. So you're left guessing. It's ... | ||
| snake | 12/19/2011 | Dana Krempels, Ph.D. |
| Q: SIR HOW I KNOW THAT THIS SNAKE IS POISSONESS ? ANYTHING THAT TELL ME THAT THIS SNAKE IS POISSONESS ... A: You say "the following snake" which suggests that a picture is attached, or at least some type of ... | ||
| We need creative science-related shirt ideas | 12/19/2011 | Dana Krempels, Ph.D. |
| Q: We have a science-related club in school. We need shirt ideas for this club. We need a ... A: My husband Kevin is much better than I am at this, so I asked him for some suggestions. Here's what ... | ||
| snake | 12/18/2011 | Dana Krempels, Ph.D. |
| Q: SIR HOW I KNOW THAT THIS SNAKE IS POISSONESS ? ANYTHING THAT TELL ME THAT THIS SNAKE IS POISSONESS ... A: There are so many species of venomous snakes in India that it would be impossible to give you all ... | ||
| Biology Help? | 12/13/2011 | Chris Bemis |
| Q: there! I apologize for bothering you again, but I need a little more help on researching a ... A: Here are a few sites I found by typing "prokaryote vs eukaryote" into Google: ... | ||
| Physiology | 12/13/2011 | Walter Hintz |
| 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 ... | ||
| Do human hermaphrodites exist? | 12/13/2011 | Dana Krempels, Ph.D. |
| Q: Do human hermaphrodites exist? A: There have been no confirmed cases of true human hermaphrodites, in which both male and female ... | ||
| Biology Question? | 12/12/2011 | Chris Larsen |
| Q: How are you? I am sorry to bother you, but I have a quick question, and I hope you can answer it. ... A: OK, so at a fundamental level we are studying cells and cell biology in order to understand the ... | ||
| Biology Question? | 12/11/2011 | Chris Bemis |
| Q: How are you? I am sorry to bother you, but I have a quick question, and I hope you can answer it. ... A: the following site briefly identifies why we study cell biology as well as gets into the basics of ... | ||
| Biology Question? | 12/11/2011 | Chris Larsen |
| Q: How are you? I am sorry to bother you, but I have a quick question, and I hope you can answer it. ... A: The first paragraph on the first website that you listed describes why we should study the cell and ... | ||
| Biology Question? | 12/11/2011 | Walter Hintz |
| 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 | Walter Hintz |
| 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 ... | ||
| Allium cepa chromosomes | 12/8/2011 | Dana Krempels, Ph.D. |
| Q: what is the reason for the constant number of chromosomes in allium cepa *onion* from generation to ... A: I am not sure exactly what you are asking. But if you mean why a daughter Allium cepa has the same ... | ||
| unknown microbe | 12/7/2011 | Walter Hintz |
| 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 | 12/6/2011 | Chris Larsen |
| Q: I went for a flu shot back in September 2011. My PCP took routine blood tests but I did not hear ... A: I understand what you are saying and at the end of the day, it's your health. So ultimately the ... | ||
| High hemoglobin levels? | 12/4/2011 | Dana Krempels, Ph.D. |
| Q: I went for a flu shot back in September 2011. My PCP took routine blood tests but I did not hear ... A: I can't tell you why your physician waited so long to contact you. Only she can tell you that. I ... | ||
| High hemoglobin levels? | 12/3/2011 | Dana Krempels, Ph.D. |
| Q: I went for a flu shot back in September 2011. My PCP took routine blood tests but I did not hear ... A: Well, as almost all web sites (including NIH and other reliable sources) will tell you, the "normal" ... | ||
| High hemoglobin levels? | 12/3/2011 | Dana Krempels, Ph.D. |
| Q: I went for a flu shot back in September 2011. My PCP took routine blood tests but I did not hear ... A: When she said "slightly" elevated hemoglobin, did she give you a number? If your hemoglobin is very ... | ||
| Routine Blood tests | 12/3/2011 | Chris Larsen |
| Q: I went for a flu shot back in September 2011. My PCP took routine blood tests but I did not hear ... A: First and foremost, your physician has knowledge of your medical history so none of what I tell you ... | ||
| Routine Blood tests | 12/3/2011 | Walter Hintz |
| 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 | Walter Hintz |
| 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 | Dana Krempels, Ph.D. |
| Q: How are you? I have a quick question. I am trying to find some helpful websites that will assist me ... A: Here's my own web site I use to help my Evolution and Biodiversity students understand the ... | ||
| Biology Questions? | 12/1/2011 | Walter Hintz |
| 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 ... | ||
| DNA replication | 11/30/2011 | Dana Krempels, Ph.D. |
| Q: I am Mr Washington. Since this is my first time learning about DNA, I hope you can help me. During ... A: Washington, The problem is that the enzymes that facilitate DNA replication can add incoming ... | ||
Biology
Answers by Expert:
Dana Krempels, Ph.D.
Top Expert on this page
Expertise
I can answer biology-related questions in the areas of evolution, zoology, botany, genetics, and ecology. But I don't answer homework questions or provide ideas for your science fair projects. So students please do your learning the right way by reading your text assignments and studying!
Experience
At the University of Miami, I teach Evolution and Biodiversity, Botany, Zoology, Genetics, Ecology, and a variety of seminars (e.g., the Biology and Evolution of Human Gender Roles).
Education/Credentials
I have a B.S. in Biology and an A.B. in English from the University of Southern California (1980).
I earned my Ph.D. in Biology in the area of evolutionary biology/visual physiology from the University of Miami in 1989.
Past/Present Clients
I am currently an "expert" in both the "Rabbits" and "Wild Animals" categories.
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