Biology - April 2007

they open at night, allowing CO2 to enter


they close at night, conserving water


they open during day, allowing CO2 to enter


they close during day, conserving water.

2007-04-03 17:20:27 · 3 answers · asked by whatsinaname07 1

i consider if a certain genetis chip of cells could enplant into the area of controlling my memory , and it could has contain the basic vocabularies about common life , and hetergenious disciplines in modern society.

2007-04-03 17:12:25 · 2 answers · asked by kikina R 1

desert, rainforest, tundra, tiagra.

2007-04-03 17:09:37 · 3 answers · asked by Anonymous

2007-04-03 17:04:29 · 8 answers · asked by mikeymofunky 1

Oh, I only need a brief explanation on WHY Organisms rarely exist alone in the natural environment.

2007-04-03 16:45:41 · 3 answers · asked by DuaiTaiTu 2

i need some websites that clearly show each brain part and their functions ^__^~

2007-04-03 16:35:14 · 2 answers · asked by Sasumi 1

2007-04-03 16:22:28 · 3 answers · asked by lacey w 1

gains an electron from NADPH+ H+


gains an electron from ATP


gains an electron from photosystem 2


gains an electron from the P700 system.

2007-04-03 16:21:26 · 4 answers · asked by Anonymous

does anyone have a theory on If Preferences are a form of Natural selection? or if God employs natural selection or is natural selection over-rated?

2007-04-03 16:15:32 · 5 answers · asked by godstar 1

oak tree, cactus, corn plant, or rose bush.

2007-04-03 16:07:36 · 2 answers · asked by whatsinaname07 1

A.translocation
B,insertion
C,inversion
D,deletion

2007-04-03 16:02:13 · 5 answers · asked by lacey w 1

to supply thylakoid with OH (-)


for oxidation of pigment molecules


to supply thylakoid with O2


for reduction of pigment molecules

2007-04-03 15:59:24 · 3 answers · asked by Anonymous

2007-04-03 15:53:41 · 4 answers · asked by Anonymous

It is said that humans evolved from monkeys, my questions are:

1. why are there still monkeys?
2. how come no other animal species has evolved into human like creatures, like tigermen, elephantmen, batmen etc....
3. why mamals? how come reptiles or insects did evolve into human like creatures?

basically, my question is, why are we all alone? why arent there any other species that have evolved into human like creature? what makes apes so special?

2007-04-03 14:34:06 · 8 answers · asked by Nanook~Maybe I need a longer Name?~ 6

If a person's blood type is O positive, it could be changed to say O negative, Or, any type you have now to some other type of your choice. Would you go for such a change?

2007-04-03 13:47:54 · 5 answers · asked by ZORRO 3

It can and should be DNA that's not assigned to anyone.

2007-04-03 13:44:01 · 13 answers · asked by ZORRO 3

2007-04-03 13:12:41 · 4 answers · asked by ♥Lucky♥ 6

2007-04-03 12:51:10 · 2 answers · asked by andrew s 1

thanks!

2007-04-03 12:35:36 · 2 answers · asked by suju 2

similarities of ALL of them.

2007-04-03 12:14:37 · 4 answers · asked by pinkpaperdoll♥ 2

2007-04-03 11:45:37 · 4 answers · asked by brejerm 1

2007-04-03 11:36:19 · 1 answers · asked by slipkont g 1

i got these three wrong and i cant figure out the right answers...

1.) why is it eaiser to define protists by what they are not, rather than what they are?

2.) Describe the proposed relationship between prokaryotes and the organelles in eukaryotes.

2007-04-03 11:19:51 · 3 answers · asked by granny smith 2

2007-04-03 11:03:24 · 6 answers · asked by Anonymous

2007-04-03 10:40:12 · 4 answers · asked by kelleygaither2000 1

A.) Lipids
B.) monosaccharides
C.) amino acids
D.) nucleosides
PLEASE EXPLAIN
TY!

2007-04-03 10:26:08 · 6 answers · asked by Heell yeaah! 3

"Dominant genes produce evolutionary benefits."...I told my teacher that this question was too vague on the test but she said I shouldn't be...I guessed false because they don't produce the benefits, mutations/natural selection are responsible for that....the genes become dominant.....I don't know though..

2007-04-03 09:50:43 · 4 answers · asked by Anonymous

Are there any theories about what a neutral, uninfluenced by tone, culture, etc., would sound like, assuming this is even possible?

2007-04-03 07:27:52 · 3 answers · asked by Anonymous

what is the incompleteness of the fossil record and the resulting uncertainties with respect to human evolution. What are the approximate dates and distribution?

2007-04-03 07:26:57 · 4 answers · asked by tiger_rider 1

2007-04-03 03:52:32 · 2 answers · asked by billgersitz 1