Biology - November 2007

If so, how do those hormones travel between secreting cells and target cells?

2007-11-12 08:13:46 · 0 answers · asked by Suli T 2

? help i can't find it anywhere.

2007-11-12 08:12:45 · 5 answers · asked by Anonymous

a. males are likely to be promiscuous
b. mating systems are likely to be monogamous
c. mating systems are likely to be polyandrous
d. males most likely will show sexual selection
e. females will have a higher Darwinian fitness than males

2007-11-12 07:56:28 · 2 answers · asked by Anonymous

Why are adult longbones curved???

2007-11-12 07:45:26 · 3 answers · asked by chris1584 1

2007-11-12 07:29:03 · 4 answers · asked by Emily boo 2

2007-11-12 07:06:44 · 2 answers · asked by dev 1

2007-11-12 06:45:45 · 3 answers · asked by chungy 1

2007-11-12 06:39:37 · 9 answers · asked by batlan c 1

Crossing over (recombination) is thought to be evolutionarily advantageous b/c this process continually shuffles genetic alleles into novel combinations. Some organisms, however, have lost the recombination mechanism, while others certain chromosomes do not recombine. what factors do you think may favor reduced levels of recombination?

please help!

2007-11-12 06:36:41 · 3 answers · asked by veryconfused 2

Here's an article stating it's only a matter of tme:

http://ca.news.yahoo.com/s/afp/us_un_science_rights_cloning

If this is true, then imagine all the implications, law, ethics, etc. etc.

Who's son/daughter would it be? What rights would it have?

Will it really be considered to be human, etc. etc.

Why would people even go there. I know the answer already, because they can, but it doesn't make it right does it.

2007-11-12 06:09:55 · 5 answers · asked by Anonymous

1. What type of microscope should a scientist use to determine whether the bacteria they are studying have viruses inside them? Why?

2. What's the mathmatical relationship between these units: meter, kilometer, centimeter, millimeter?

2007-11-12 05:55:42 · 3 answers · asked by Anonymous

2007-11-12 05:45:40 · 1 answers · asked by Anonymous

How does MRSA function?
How is it like eukaryotic cells? How does it differ?
How does it cause illness?

2007-11-12 05:42:01 · 3 answers · asked by Anonymous

fleas, ants, mosqitoes, and spiders?

2007-11-12 05:38:30 · 6 answers · asked by DJ 6

Name the part of the cell or organelle responsible for each of the following:
a) digesting a bacteria the cell ingested
b) production of insulin
c) adding a glucose molecule to a protein for export
d) storage of starch in a potato
e) synthesize glucose molecules
f) hydrolysis of disaccharides
g) synthesis of steroid hormones
h) synthesis of ribosomes

Thank you so so so much! Just a short answer to each of these, or whatever ones you know would be awesome!

2007-11-12 05:37:26 · 1 answers · asked by Anonymous

The Nerve Cells in your body must constantly remove substances from the cell against the concentration gradient. What type of process most likely takes place to remove substances from a cell against the concentration gradient?

2007-11-12 05:26:41 · 3 answers · asked by not basic 5

In contrast to the envelope of the nucleus, the double membrane of a mitochondrion:

a. is not studded with pores

b. is freely permeable

c. creates 2 compartments

d. separates DNA from cytoplasm

e. has 2 lipid bilayers


I think that it is a.

2007-11-12 05:20:02 · 1 answers · asked by LJC 2

2007-11-12 05:10:20 · 5 answers · asked by wolf 2

I have been studying the theory of evolution for a few weeks now, and I am wondering what the legitimate proof against evolution actually is.

I understand that irreducible complexity is a big one (especially regarding flagellum), but i saw a video of a speech that Ken Miller, a prominent biologist, made where he disproved the irreducible complexity of the bacteria flagellum.

I also have heard arguements as to there being no intermediate species found in the fossil record. But after some research it seems that this is a false claim. ID proponents will never admit that a fossil is an intermediate species and will just say that it is just another creature that was designed.

So what else are proponents of ID considering flaws in evolution?

I have heard that it is impossible for new information to be created in the DNA. If this is true, it would seem to me to disprove evolution.

2007-11-12 05:06:11 · 8 answers · asked by Gardner S 2

2007-11-12 04:49:24 · 2 answers · asked by Mykhall 2

2007-11-12 04:46:01 · 8 answers · asked by ☮ 5

2007-11-12 03:23:59 · 2 answers · asked by intelligent girl 1

I've always wanted to fly. Why can't I?!?!?

2007-11-12 03:16:00 · 7 answers · asked by Anonymous

below i have listed my science fair topic:
measuring the percent or water in various fruits and vegetables

2007-11-12 03:14:57 · 2 answers · asked by andriana h 1

2007-11-12 03:02:33 · 7 answers · asked by fl_state_of_mind_85 2

wouldn't let me finish question..so here's the rest of it....

What allele will the other sister chromatid have? (assume crossing over has not taken place)

2007-11-12 02:58:56 · 1 answers · asked by KP 1

How many different genetic types of gametes would be produced without crossing over?
What are the genotypes of the gametes?
If crossing over were to occur, how many different genetic types of gametes could occur?
List them..

2007-11-12 02:58:06 · 1 answers · asked by KP 1

2007-11-12 01:46:38 · 4 answers · asked by alkiepop 2

When the 8th continent melts in the artic, I imagine that new fossils shall be found and uncovered. Since the continent is quite large, I'd imagine a lot of new species, dinosaurs, crustatians, mammals shall be uncovered. Do you think the thawing of the 8th continant will lead to the evolution or rebirth of the old DNA strands of the creatures that used to live there?

2007-11-12 01:46:20 · 2 answers · asked by Anonymous

pls answer it plss

2007-11-12 01:04:38 · 3 answers · asked by ghelay_anne012 1