Biology - December 2006

Why do nerve impulses move faster along myelinated nerve fibres?

2006-12-26 16:11:55 · 5 answers · asked by KE 1

i saw this commercial and it showed kids putting leeches on their bodies. i was just wondering how you would benfit from sticking them on your body.

2006-12-26 15:52:00 · 12 answers · asked by soccerphyco13 1

2006-12-26 15:51:35 · 3 answers · asked by Anonymous

I would like to know how humans produce hermones and why.

2006-12-26 15:33:55 · 11 answers · asked by Tiffia 2

Like in the full speed version of pump it by the black eyed peas hehe!

2006-12-26 15:29:56 · 5 answers · asked by snowygirl30 1

I love the outdoors and I am hopefully getting an internship this summer to help at some type of Nature Park. I am an average student and have a lot of passion for what i am involved with. I have shied away from being a Biology major because of the math and chemistry involved. Do you know of any majors or careers that would be involved with nature and also be challenging but are not structured around mathematics?
Thanks for your help

2006-12-26 14:06:37 · 9 answers · asked by Anonymous

DNA

2006-12-26 13:34:20 · 7 answers · asked by nhicky 1

Do we humans use 10% of our brains or do we use 100%?

If only 10 then ow does one use the other 90%?

Where did that legend start as well?

2006-12-26 13:14:33 · 14 answers · asked by ? 6

What do u think would happen if humans where able to use all 100% of our brains ?? We only use I think 3% or even less, what sort of things are we able to acheive with the full 100% ??

2006-12-26 13:04:56 · 8 answers · asked by Anonymous

whats the difference between inhibitor genes and dominant epistasis.
by definition, inhibitor genes and dominant epistasis,both refer to the presence of one dominant allele at the first locus prevents the expression at the second locus.
inhibitor: 13:3 dominant epistasis: 12:3:1
cheers

2006-12-26 12:55:08 · 1 answers · asked by Anonymous

Evolutionists?
I am constantly told by evolutionists that I am stupid because I don't believe what they believe (not all, but a lot). So let me ask some (just a couple) questions that bother me about evolution and give me your best information.
Which evolved first (how, and how long, did it work with or without the others?)
-Digestive system, the food to be digested, the appetite, the ability to find and eat food, the digestive juices, or the bodies resistence to those juices?
-The drive to reproduce or the ability?
-The lungs, the throat, or the perfect exchange of gases?
-DNA or RNA to carry the DNA message to cell parts?
-The plants or the insects that live on and pollinate the plants?
-Bones, ligaments, tendons, blood supply,or the muscles to move the bones?

Just pick one and go with it unless you think you can generalize anything. I would think it to be easier to just pick one though.

2006-12-26 12:52:06 · 9 answers · asked by ScottyJae 5

Evolution is based not on 'chance' as it is misquoted by creationists but by small changes over a long period of time (more than 6000 years). The dolphin found off Japan with four fins that are believed to be remnants of legs is another piece in the evolutionary jigsaw and backs the fossil evidence.
http://www.foxnews.com/story/0,2933,227572,00.html
These small changes over millions of years are in terms of probability possible, making the evolution theory the only theory that works and fits the answers to all our questions. This is not what we know, this is what we put forward as the best probability. The God theory on the other hand is lacking in that there is no evidence and the probability of there being a personal God is so low as to be non existant, especially as the probability of a complex creator will require a more complex creator to create him. Comments without references to that book, this is a question of probability.

2006-12-26 12:24:38 · 13 answers · asked by Anonymous

"Science n. systematic knowledge of the physical or material world gained through observation and experimentation."

How can one "observe" something that supposedly happened millions/billions of years ago?

I am a creationist, but I don't run around trying to say that creation is a "science" because it can't be actively observed. One can see evidence of it, but anyone can twist evidence their own way to say what they want.
It just irritates me that people of any sort try to pass off microevolution as being a "science" when it's unobservable. If we evolved from monkies, why are there still monkies around? wouldn't they all be humans?
I just wish that schools would put more stress on evolution being a theory as opposed to fact.
And I wish those people with the darwin-fish on the back of their cars would evolve themselves some working eyes and some more brains, they still seem a bit too much like primates to me.

2006-12-26 11:25:31 · 12 answers · asked by franklin_phil 1

Any ideas pls??

2006-12-26 10:59:03 · 2 answers · asked by }{3@T 2

2006-12-26 10:47:29 · 6 answers · asked by Ask&learn 3

2006-12-26 10:31:06 · 20 answers · asked by Kitty 1

OK, so I have a science fair project to do and my teacher requires us to have a CONTROL GROUP. But I really don't know what my control group is.. My project is basically just testing females and males to see which of the gender would find the change in the image faster.
EX. http://www.cs.ubc.ca/~rensink/flicker/download/Sailboats.mov
(the engine thing beneath the airplane's wing is the change)

This 'flickering' image is an example for a visual perception called 'change blindness' (http://en.wikipedia.org/wiki/Change_blindness) so,
My question is: Is change blindness more prevalent (popular) in females or male?
My hypothesis is: If change blindness were presented to males, then the time figuring out the image change would be slower. (which would mean that 'change blindness' is more popular to males)

So what would be my control group? Or do I have to change my question a little bit? (if you right click on the ex. there are options you can adjust. Is that my control?)

2006-12-26 10:13:56 · 5 answers · asked by Anonymous

2006-12-26 10:13:34 · 6 answers · asked by Kitty 1

2006-12-26 10:13:04 · 2 answers · asked by Kitty 1

2006-12-26 10:11:24 · 8 answers · asked by Kitty 1

then explain what is happening in each step of the sequence

2006-12-26 09:48:31 · 2 answers · asked by graphicer89 2

HELP

2006-12-26 09:33:40 · 5 answers · asked by C_ster 1

2006-12-26 09:12:18 · 4 answers · asked by Nizzy 1

belong to which kingdom?
-Animalia.
-Eubacteria.
-Fungi.
-Plantae.

2006-12-26 08:46:07 · 2 answers · asked by ? 3

-one genus name and one species name.
-one genus name and two species names.
-two scientific names if it is found on different continents.
-two genus names but only one species name.

2006-12-26 08:41:17 · 7 answers · asked by ? 3

well?

2006-12-26 08:40:18 · 7 answers · asked by Annalisa 2

Does it continue to grow into your 20s like the rest of your bones? Or is it one of those things that stops earlier?

2006-12-26 08:31:49 · 3 answers · asked by Matt 2

2006-12-26 08:26:58 · 5 answers · asked by Siminator 2

i read in livescience.com that in about 25 years from now, they will invent something that will extend lives from aging.

2006-12-26 08:07:20 · 7 answers · asked by Anonymous

2006-12-26 08:04:44 · 16 answers · asked by ConFuZzled? 3