Biology - December 2007

2007-12-04 17:29:58 · 2 answers · asked by chisoxfan1998 1

wat was the evolutionary advantage of the proto-eukaryotes that engulfed areobic bacteria but did not digest them?

2007-12-04 16:08:58 · 2 answers · asked by The One 1

a.

three phosphate groups.

c.

nucleotide portion.
b.

bonds between the phosphate groups.

d.

ribose portion.

2007-12-04 16:07:53 · 5 answers · asked by Golu S 1

Bio. Can anyone help me with this question:

Phenol red is a chemical that turns red when carbon dioxide, CO2, is absent and yellow when CO2 is present. A small green plant seedling is placed in phenol red in the dark. Which one of the following is most likely to occur?


Answer: If the solution is red to begin with, it will turn yellow because respiration is occurring.

2007-12-04 15:54:24 · 4 answers · asked by That'sINTENSE! 4

If cytokinesis did not occur what would happen _________.
a. there would be a new cell
If cytokinesis did not occur what would happen _________.
a. there would be a new cell c. there would be one cell with two nuclei
b. there would be one cell with only one large nuclei d. the cell would ALWAYS die
c. there would be one cell with two nuclei
d. the cell would ALWAYS die

2007-12-04 15:38:53 · 1 answers · asked by Anonymous

1.Fermentation converts NADH back to NAD+ so that glycolysis can continue.
2.Organisms that cannot make their own food are autotrophs.
3. In the dark reactions of photosynthesis, the energy in sunlight is captured and used to make ATP and NADPH.
4.Because they cannot make their own food, autotrophs rely on the food-making ability of green plants.
5. Photosystems are clusters of pigment molecules that are able to capture the energy of sunlight.
6.Glycolysis is an aerobic process that breaks down food molecules to produce energy.
7.When there is no oxygen present, yeast cells break down glucose to form lactic acid and carbon dioxide.
8.Approximately 36 molecules of ATP are formed during cellular respiration.

2007-12-04 15:37:50 · 2 answers · asked by Golu S 1

Mention changes in specific body cells, thanks . (:

2007-12-04 15:33:53 · 2 answers · asked by Anonymous

2007-12-04 15:29:57 · 1 answers · asked by LOVE FOREVER 1

Soo cann anyone help me with questionnn

2007-12-04 15:21:58 · 2 answers · asked by Anonymous

I know there are vascines for viruses, but are there any for bacteria, fungi and protozoa?

2007-12-04 15:07:40 · 2 answers · asked by lillyross 1

2007-12-04 14:41:32 · 4 answers · asked by tbirdsrule20 1

a. Monohybrid cross
b. Dihybrid cross
c. Test cross
d. None of the choices are correct.

2007-12-04 13:47:51 · 1 answers · asked by estudiante 1

2007-12-04 13:29:24 · 9 answers · asked by Zac M 1

I'm sort of confused with this question. You don't necessarily have to answer it, but can you help me on it mostly? What it pretty much is, genetics. A male and female have two children where they both have a disease that neither of the parents have. what's the probability that the third child will have this disease as well?

That's pretty much all I remember from the question, thank you!, lol.

2007-12-04 13:18:34 · 2 answers · asked by Addie M. 1

2007-12-04 13:15:05 · 3 answers · asked by ♥Roberta. 5

I need this for a science project

2007-12-04 12:56:00 · 4 answers · asked by warman21 1

...and are ginger kids soulless?

World is confusing me really =/

~Ming~

2007-12-04 12:45:22 · 3 answers · asked by Anonymous

2007-12-04 11:52:15 · 1 answers · asked by HeavenlyxCutie 1

2007-12-04 11:06:46 · 4 answers · asked by missymommyof3 1

I need correct information on the structure, and history, and benefits.

2007-12-04 10:39:23 · 1 answers · asked by gossipgirl44 1

I know some people say you yawn when
your tired but what's the real reason?
And how come when one person yawns
that makes the person next to them yawn too?

2007-12-04 09:32:17 · 9 answers · asked by Anonymous

a. IgM
b. IgA
c. IgD
d. IgE
e. IgG

2007-12-04 09:18:34 · 2 answers · asked by Anonymous

i had to do a lab for this and everything, i have the results too. however i need some background information... does any one a good source for this?

2007-12-04 09:15:27 · 3 answers · asked by supahhtroopahh2 3

How do normal flora help minimize bacterial infections of the skin?

2007-12-04 08:58:27 · 2 answers · asked by Anonymous

I have a question of my homework that asks "The human body's immune system normally tries to get rid of any foreign matter it encounters ie. bacterial infections. This is also why organ transplants are sometimes rejected.

What prevents a mother's immune system from rejecting the fetus developing inside of her?

I have absolutely no idea so any help would be appreciated.

Thank you!

2007-12-04 08:55:49 · 6 answers · asked by Hello! 3

2007-12-04 08:29:39 · 41 answers · asked by Anonymous

Can you belive in both or is it one or the other?

2007-12-04 07:05:29 · 13 answers · asked by remarie84 3

what are some buffers that occur in nature or within organisms

list your sources

2007-12-04 06:56:19 · 1 answers · asked by mr.blackgrapesoda 1

2007-12-04 06:51:47 · 10 answers · asked by Anonymous

A.The oxygen atom has a negative charge.
B.The hydrogen atoms do not share electrons.
C.Water molecules move randomly around each other.
D.Water molecules cannot dissolve many substances.

Question 2

How does water relate to the ability of a living thing to generate energy?

A.Water is responsible for the generation of energy in the cell.
B.The cell is an aqueous environment.
C.Without the proper balance of water, chemical reactions in cells could not take place.

What is the most important role of hydrogen bonding between water molecules

A.It enables water molecules to bond to each other.
b.It allows oxygen and hydrogen atoms to be charged.
c.It allows cells to keep water in balance.

2007-12-04 06:13:15 · 2 answers · asked by Weemann 2