Biology - March 2007

I am doing this for my report....It has to be at least a 1000 words, but i cant seems to find the right source for it.
What i have found is the stages like mitosis & the meiosis I & II...
Required are: The hormones involved and what are the roles they play during spermatogenesis....
Are there any good books or websites regarding this topic?

2007-03-11 19:41:33 · 2 answers · asked by lestasia 1

Seems like they might be a challenge for both evolution AND creationism.

Just kidding.

But seriously - what brought about the sloth?

2007-03-11 17:41:06 · 2 answers · asked by Ejsenstejn 2

what are other proteins that can be produced by these techniques (ex.insulin). Who would need them and why?

2007-03-11 17:28:58 · 1 answers · asked by Anonymous

how do scientists take advantage of antibiotic resistance genes?

2007-03-11 17:18:12 · 2 answers · asked by Anonymous

explain the difficulties we might face.. thanks

2007-03-11 17:05:20 · 3 answers · asked by fayewred 2

2007-03-11 16:56:00 · 2 answers · asked by zenno 1

Describe what would happen and explain why it would happen.

2007-03-11 16:54:46 · 4 answers · asked by azndarkangel 1

2007-03-11 16:36:58 · 2 answers · asked by teck kim 2

Is it just one thing? what is it?

2007-03-11 16:31:04 · 3 answers · asked by jeremy 1

someone please I hate bio, help me :)

2007-03-11 16:26:54 · 4 answers · asked by jeremy 1

In Microbiology there is a word used to describe a way for a bacteria to transport itself to other living organisms or locations whether being through water, air, direct-contact, etc... I thought the word was vertex, but now I am not so sure. Any help on this?

2007-03-11 16:14:31 · 3 answers · asked by Anonymous

have only been able to find 16 of the organelles.

2007-03-11 16:10:49 · 3 answers · asked by monyeda 2

There is legitament research on this, im just looking for someone who allready has the sources.

2007-03-11 16:01:36 · 1 answers · asked by tjcsonofallnations 3

If heredity were perfect, living systems would never change; if variation were uncontrolled by the hereditary process, biological systems would lack the stability that allows them to persist through time.

2007-03-11 15:48:00 · 2 answers · asked by eljo 1

2007-03-11 15:47:36 · 2 answers · asked by SUSAN F 1

I can't get a good purpose and hypothesis! The teacher keeps telling me to fix it. Help! Ok so what we did was there were 6 groups of people, and each group had different tools like tweezers and forceps to pick up cat food. We all had to get as much as possible. There were 5 rounds, and after each one, the teacher told one person out of the team with the least food to join a different team

Heres my new one: If variations affect an individual's chance of survival, the the people with the least beneficial variations will not be able to survive.

2007-03-11 15:40:28 · 7 answers · asked by omygosh 4

Some people come to ask scientific questions , and argue the theory of evolution armed with religiuos indoctrination. Do they really want to know the truth, or are they out to preach more doctrin?

2007-03-11 15:39:28 · 3 answers · asked by irene k 2

another weird discussion topic i had with a friend, as dogs scent areas for territory and each dog has an individual scent, do human have the same ability?
also is this why some people have toilet phobias, ie do/can not use other peoples toilets?

2007-03-11 15:37:17 · 2 answers · asked by Kev P 3

2007-03-11 15:32:39 · 1 answers · asked by willie 1

Ok so what we did was there were 6 groups of people, and each group had different tools like tweezers and forceps to pick up cat food. We all had to get as much as possible. There were 5 rounds, and after each one, the teacher told one person out of the team with the least food to join a different team

2007-03-11 15:28:00 · 1 answers · asked by omygosh 4

How organism like 'pond skaters' can 'walk' on water?

2007-03-11 15:14:45 · 7 answers · asked by ghettoco 1

How organism like 'pond skaters' can 'walk' on water?

2007-03-11 15:14:16 · 4 answers · asked by ghettoco 1

2007-03-11 15:08:53 · 6 answers · asked by JesusFreak! 1

My girlfriend told me something about an island (possibly a british territory and possibly in the Atlantic) where the population has or had reached a critical human breeding pool mass. She says that she read something that said that because the variety of genes is so limited there..... get this... she says the women are unable to become pregnant. She said that it showed some sort of proof of nature taking over and not letting things get too messed up.
Has anyone ever heard of this??? Know the name of the island??? We have searched and searched to no avial.

Side note, she is German and maybe read about it in a Geo magazine... or some other German publication..

2007-03-11 15:07:09 · 4 answers · asked by rgr8apples 2

None of it happens today.

2007-03-11 15:04:16 · 5 answers · asked by thespliff2010 1

If so who are you or they descended from? Supposedly i am of viking descent

2007-03-11 14:51:10 · 2 answers · asked by Metal God 2

2007-03-11 14:45:27 · 3 answers · asked by JesusFreak! 1

what does it mean? im studying biology but dont get it.

thanks!

2007-03-11 14:41:31 · 1 answers · asked by Rattiesrule 2

2007-03-11 14:29:07 · 6 answers · asked by Anonymous

Where do enzymes break down food in the digestive system

2007-03-11 14:14:13 · 6 answers · asked by Chevy 1