Biology

bats are pretty interesting animals. the species present in an area would tell you the present condition of it. Certain species live on certain altitudes. Some live in disturbed forrests and caves, while others dwell in abandoned buildings. We have spotted a cave once in which it shelters a single species of bat. I thought bats are horrible creatures. But I changed my mind after I got close to them. Also, they can harbor ectoparasites.

Hello, I am doing an experiment/essay on acid rain... and I need to formulate a reasearch question. so,, I was wondering . Are nitric, sulfuric, and carbonic acid components of acid rain. ? If so, why would there be three different types of acid rain and what would be the extent of their respective damage ?

What is the period where chromosomes duplicate? What is the process by which a cell maintains differences in concentrations of certain ions on either side of the plasma memberane called and how is it conducted? What are the main differences between cytokinesis in plant cells and in animal cells? Thanks guys.

Hey! My biology teacher told my class that Disney World will not be around in 50 years because of global warming. I was wondering if she is right or not. I mean it is kinda crazy about the global warming and all because it is really cold in Northern Ontario right now!

what mineral elements do you use to increase the yield in plants?? THIS IS FOR COURSEWORK LOL

Based on impact, human clonings had cause alot of controversy to the community.Is it logical to stop the scientists from continuing with their "human cloning" research despite the fact that some of the respondses on human clonings are not encouraging? Will human cloning ever be successful in the near future or will it be just scientists playing god to create something outstanding?

I'm stuck on this question..I understand that the red and blue lights are mostly absorbed in chlorophyll whereas the green light is poorly, resulting in the dominance of green light. So, red light being a low level light would result in a chlorophyll extract to appear grey because we lose colour perception. Is this in any way correct?

I was wondering if it is possible to grow bread fungus in nutrient agar. I know you can grow bacteria there, but I was wondering if fungus would grow in there to. What I really want to know is; Which one of the two (fungus or bacteria) relies more on nutrient agar to grow? Thank you -Serminigo

I hope there is at least one person here who did this lab in their college. Well my class did this in our advanced biology class this week (i'm in high school) but search in google tells me that college people do so as well. Anyway, the lab is about leaf disc buoyancy which is basically by taking spinach leaf discs (you just take a straw and make small holes on it), vacuum out the oxygen so that they sink in the water, and then put them on water under photosynthetic lights and measure how many of them come up to float on the surface again. Other leaves are OK but we used spinach and I think all leaves (as long as they're not hairy) are OK. But here's my Q (sorry for l…

My elder sister is a dog lover, and she has asked me to sign a petition to change the media portrayal on so-called 'aggressive breeds of dog.' This would include Pit-bull terriers, Rottweilers, Dobermans et.c Her argument is, that the owner is responsible for the temperament of the dog, and it's unfair to ban certain breeds, and have more media attention on certain breeds, if it's solely the owner that's responsible for the dogs’ temperament. She says she has some stats that put Alsations, and Jack Russells and surprisingly Collies at the top of the list, but I havn't seen the source of these stats, so I'm clueless as to their credibility. Also you have to take stats…

Hello All, I am currently studying in preparation for the Biology Clep Examination and would like to know if anybody has any suggestions for taking the test or any sources of relevant information (remember, nothing too deep...it is just for entry level biology). I understand a big portion of the test is on cell division and cellular metabolism. I have bought the REA Study guide as well as the official Clep study guide and feel I understand the information pretty well, but I have heard the test is quite challenging. Any suggestions are appreciated. BTW, how many KCalories are liberated when a unit of ATP is used? I have heard 4.5 and 7.5 from two different sour…

HI I was just wondering if animals can get asthma?

Hello all, I just started doing Year 12 biology at school, but I'm already stuck with a few questions which I can't answers for in the text book. 1. Explain why tadpoles living in a puddle of water may die well before the water has completely dried up. 2. Chloroform and ether quickly induce unconsciousness. What chemical property do they have which explains their rapid absorption and thus rapid effect? 3. If a drowning person inhales fresh water into their lungs, death occurs rapidly in about three minutes. If a drowning person inhales sea water instead of fresh water, death occurs more slowly taking about six to eight minutes. Use your understanding of os…

Any thought on mutant Chad Mosquito. Casuing many problems in Africa as we speak. Antedote has been discovered but logistic prevent adequate response to this mutant.

OK...I'm a little bit unsure of my anwsers in regards to extracting DNA from peas so I was hoping if anyone could confirm them for me. I looked up a site that had remotely the same procedure if it helps http://learn.genetics.utah.edu/units/activities/extraction/ - The meat tenderizer acts as an enzyme such as Bromelain and Papain, which are proteases to cut away proteins (histones) from the DNA allowing for it to unravel. This reactant is important because... (I'm a little stuck on this... I know what histones are, but cannot seem to find anything on why they must be removed in order to unravel the DNA...ideas?) - While the blender separates the pea cells, there …

Blood is a popular way for courts to find criminals because of the DNA. One problem though: Don't blood cells shed their nucleus when they mature? I know there's got to be something else going on because if it weren't they wouldn't use blood as a primary DNA source, but what is it that's going on?

After watching Kenneth Miller discuss the fusion of chromosome #2 I'm still wondering how this happened.. Did this "fusion" take place within an individual at some point in history and would this individual be able to mate with an individual who still had 48 chromosomes? I can't find anything online that explains it. Somebody please help me out thanks. -Hunter

So I spent a long night talking to a relatively smart new ager (who's smart enough to realize a lot of new age crap is total bunk) about various topics, including Earth's climate system and all the feedback loops it contains, as well as the carbon cycle and how the amount of carbon locked up in various phases of matter impacts the global temperature (e.g. widespread conversion from carbon compounds in solid and liquid form are causing temperature increases) At one point he started talking about how plants respond to human behavior, and sort of perk up when people are having sex. I said I didn't believe it, and that while plants are full of chemical feedback loops whi…

http://www.cnn.com/2006/WORLD/europe/12/20/uk.komodo.reut/index.html I'm sure all of you have heard of this sort of thing - parthenogenesis. But apparently they just recently discovered that Komodo dragons can do this, as well as other lizards. So, maybe Godzilla's asexual reproduction wasn't so far fetched after all??

My sisters looking for and i quote ' distinguishing between motile and non-motile bacteria ' (University student) can somebody help?

Does Pyruvate reduce body fat? Do Lipotropics reduce body fat? Are Apex vitimans and supplements good quality or am I wasting my money? Thanx for the replies in advance..

I was wondering what you guys think about the current situation of the Bird Flu threat - it has been a while since the media was wrife with worry and it seems to have subsided slightly. Do you think we are doing enough to prepare, do you think we can prepare? My answer is: Yes, to a certain extent I do think that we should prepare, however there are some fundimental problems with this: When is it going to hit? Where is it going to start? What will be the main carrier? What will the new strain be? How much money can we afford to spend? Are we putting all of our eggs in one basket by "relying" in a BirdFlu pandemic? I feel the first two questions shoul…

I have an automatic pet door which raises in the presence of an electromagnetic field. My cat wears a collar with a permanent magnet on it to trigger the door. I taught my cat how to use it in no time by putting her into a 10'x10' fenced in area outside. She explored around for a bit, and in no time found the door which automatically opens to let her back outside. And after walking back in, she investigated the door again, only to see that it opened whenever she approached. From then on she used the system constantly, confident the door would raise whenever she walked toward it, and she started running through it fairly quickly whenever she wanted to go outside. …

Can there be other reasons aside from a lack of nitrogen from the soil for the plants to have a stunted growth? Our class are planning to go to a bonsai forrest after the school year for a biodiversity research. I guess it would help to know.

I'd like to make sure I've got the definitions of my terms straight. I understand genetic engineering to be the modification of an organisms germline with the goal of introducing that modification into all that organisms future offspring. It seems that this is mostly carried out on embryonic organisms, typically at the zygote stage or earlier. I understand gene therapy to be the introdution of a genetic modification to an individual using some from of vector that is introduced into a specific part of the body, with the aim of modifying gene expression within a specific organ or tissue. It seems that it would be very difficult and probably impossible to effect …