Biology - August 2007

In the span of a few years, the hair on top of a person's head can grow to an unwieldly length. No where else on the body has this type of growth, except facial hair, which grows at a much slower pace.

No other animal appears to exhibit this sort of hair growth.

What are the evolutionary characteristics that led to the rise of continuously growing hair?

2007-08-04 05:21:34 · 3 answers · asked by Anonymous

Why did God try and make us believe it by putting fossils everwhere, not putting wings on rocks, making monkeys masturbate like silly little hairy men, and tricking us with vestigial organs or the dispensability of many proteins of the eukaryotic flagellum etc?

2007-08-04 05:02:27 · 10 answers · asked by Anonymous

2007-08-04 02:36:50 · 6 answers · asked by Anonymous

http://flickr.com/photos/andrewartemenko/1006555233/

2007-08-04 02:14:13 · 11 answers · asked by Andrew A 2

what came first the chicken or the egg???

2007-08-03 23:51:30 · 15 answers · asked by Anonymous

because of alot of evidence? What do you think? Do you still believe in god after knowing about evolution?

2007-08-03 22:32:04 · 15 answers · asked by gorge h 1

can anyone tell me what good science and technology has done to nature??? you know, the benefits it has done to nature...

2007-08-03 21:59:17 · 7 answers · asked by kyralexa 2

2007-08-03 19:42:36 · 4 answers · asked by Anonymous

2007-08-03 16:48:18 · 8 answers · asked by D Town Mom 1

2007-08-03 15:40:50 · 2 answers · asked by Anonymous

2007-08-03 15:39:27 · 2 answers · asked by Anonymous

A) TGCATAGGT
B) UGCAUAGGU
C) ACGTATCCA

2007-08-03 15:26:10 · 3 answers · asked by Anonymous

100 times bigger? 1,000 bigger? How many cells make up our body? How many atoms?

2007-08-03 12:31:11 · 6 answers · asked by Anonymous

Are you scientifically fur or opposed to Animal/Human Hybrid Genetic research? And why ?

2007-08-03 09:50:03 · 14 answers · asked by Anonymous

rather then cutting myself to find out i thought i'd ask yahoo.
if we can then what does it smell like...?

2007-08-03 09:31:02 · 11 answers · asked by Jessica 3

doin a project

2007-08-03 09:23:50 · 6 answers · asked by balla 1

create another dinosaur because about 5 months ago my dad told me scientists found a mosquito which had dinosaur blood in it and more stuff but i forgot does anyone have the story.Or a video?

2007-08-03 07:26:33 · 7 answers · asked by The Game 3

I need to know is it scientificallyb proven..or it is still just a theory.

2007-08-03 05:26:09 · 18 answers · asked by DreamBrid2007 1

what are the odds

2007-08-03 04:43:54 · 11 answers · asked by justusgod 2

What are some whys to open up and use the other 90%?

2007-08-03 04:42:24 · 11 answers · asked by Kaylin 4

2007-08-03 01:40:16 · 8 answers · asked by joyce the footballer @hotmail.uk 1

i understand the negative feedback loop, but the positive one is making no sense to me at all.
i can understand the concept but i can't see how it is even remotely relevant to regulating changes in the body.
basically i understand it as something similiar to a domino effect, where one thing begins it triggers multiple reactins from the same thing.
they've given example like child birth, blood clotting, protein digestion.
i don't get it! if there's more of the same reaction then isn't that a bad thing?
can anyone make it clearer to me please?

2007-08-03 01:28:09 · 6 answers · asked by Anonymous

I've been wanting to know this for a while but never really got an answer, why do we have a heartbeat,and what keeps it going?

2007-08-02 18:36:02 · 8 answers · asked by Paul M 2

In the loop of Henle

A. filtrate is produced.
B. water osmoses into the descending limb.
C. sodium and chloride ions are actively transported out of the ascending limb.
D. the ascending limb is very permeable to water.
E. the filtrate in the descending limb becomes more and more hypotonic.

ANOTHER QUESTION

In response to high plasma osmolarity,

A. there is an increased transport of sodium ions from the lumen of the collecting duct into the renal medulla.
B. the vasa recta carry the extra solute into the medulla of the kidney where it diffuses into the interstitial space.
C. secretion of ADH is suppressed.
D. there is an increased permeability of the membrane of the renal collecting ducts to water.
E. the osmolarity of the urine will decrease

2007-08-02 17:09:52 · 1 answers · asked by shy_happy25 1

2007-08-02 17:06:26 · 7 answers · asked by eli277 1

How are the nucleotide monomers connected to form a polynucleotide?

a. hydrogen bonds between complementary nitrogenous base pairs
b. ionic attractions between phosphate groups
c. disulfide bridges between cysteine amino acids
d. covalent bonds between the sugar of one nucleotide and the phosphate of the next
e. ester linkages between the carboxyl group of one nucleotide and the hydroxyl group on the ribose of the next

Which of the following would be a major component of the cell membrane of a fungus?

a. cellulose
b. chitin
c. cholesterol
d. phospholipids
e. unsaturated fatty acids

2007-08-02 15:08:10 · 1 answers · asked by Anonymous

I know its gross to pick your nose but ..think about it how the human body fits into another human body...its amazing..yes I am that bored...so why is this ...thanks

2007-08-02 14:46:47 · 8 answers · asked by Anonymous

2007-08-02 13:25:18 · 11 answers · asked by Anonymous

2007-08-02 09:53:27 · 8 answers · asked by Anonymous

Thanks for the extra detail...Tom Science 4

2007-08-02 09:26:12 · 4 answers · asked by Anonymous