Biology - December 2007

means we can't produce life .. that is one thing that deprives from being God... any explanation

2007-12-08 19:42:38 · 8 answers · asked by sandeep m 6

TRUE or FALSE questions:

1. phospholipid molecule has a non polar, water-insoluble head attached to a long polar, soluble tail.

2.the fluid mosiac model describes the plasma membrane as a structure that is a liquid and very rigid.

3.eukaryotic plasma membranes can contain cholesterol, which tends to make the membrane more stable

4. transport proteins span the cell membrane, allowing the selectivety permeable membrane to regulate which molecules enter and leave the cell.

5. proteins at the inner surface of the plasma membrane attach the membrane to the cell's support structure, making the cell rigid.

thanks alot!!!

2007-12-08 17:47:40 · 4 answers · asked by john Smith 2

most like a chromosomal deletion?

a. Where is the the cat?
b. Where the is cat?
c. Where is is is is the cat?
d. Where is cat the the cat?
e. Where is cat?

2007-12-08 16:54:10 · 3 answers · asked by Anonymous

a. regeneration.
b. asexual reproduction.
c. sexual reproduction.
d. a life cycle.
e. None of the choices are correct.

2007-12-08 16:42:38 · 7 answers · asked by Anonymous

a. made only of DNA.
b. formed when chromatids separate during cell division.
c. tightly linked together at a centromere.
d. found right after a cell divides.
e. unique to prokaryotes.

2007-12-08 16:27:40 · 4 answers · asked by Anonymous

1.fermentation takes place in the
a.cytosol
b.mitochondrial outer membrance
c.mitochondrial inner membrance
d.mitochondrial intermembrance space
e.mitochondrial matrix

2.during photosynthesis, visible light has enough energy to
a.force electrons closer to the nucleus
b.excite electrons.
c.split a water molecule into hydrogen and oxygen
d.b and c
e.a,b, and c

3.splitting of carbon dioxide to form oxygen gas and carbon compounds
a.photosynthesis
b.respiration
c. both a and b
d. neither a nor b

4.organellese other than the nucleus that contain DNA include
a.ribosomes
b.mitochondria
c.chloroplasts
d. b and c
e. a,b, and c

thank you

2007-12-08 16:19:54 · 5 answers · asked by Charles W 1

Honeybees
Ants
Wasps
Butterflies

2007-12-08 16:09:24 · 15 answers · asked by Anonymous

specify different versions of some traits constitute a pair of:

a. complementary chromosomes.
b. heterologous chromosomes.
c. homologous chromosomes.
d. polyploid chromosomes.
e. None of the choices are correct.

2007-12-08 16:05:34 · 3 answers · asked by Anonymous

can someone help me answer that what i got is to vague i think...



... this is what i have so far...
In sexual reproduction half the genetic information from each parent cell is passed to the offspring.
All information for the structure and chemistry of an organism is contained within this sequence of genes.


and thts supposed to get me two marks :S :( help me please :)

2007-12-08 15:53:22 · 2 answers · asked by Michael J 1

Note: This question is in the biology category for a reason.

2007-12-08 15:48:13 · 10 answers · asked by jf 1

With all this talk of "anti-aging," can we actually stop it or is it beyond the basic laws of physics?

2007-12-08 14:41:05 · 9 answers · asked by green_eyed_gal 1

an artifical cell with an aqueous solution in a a selectively permeable membrane has just been immersed in a beaker containing a different solution.

Inside the cell, there is .03 M glucose and 0.2 M sucrose and in a beaker, it is .01 M sucrose, .01 glucose, and .01 M fructose

the question is : which solutes will exhibit a net diffusion into the cell?
A Glucose
B Sucrose
C Frcutose
D both b and a

2 Question: after the cell is placed into the beaker, which of the following changes would occur?

A. the artifical cell would become more flaccid ( weak)
b. The artifical cell would become more tugid
C. the membrane potenital would decrease
D. the entropy of the system ( cell plus surrounding solution ) would decrease

all the help would be appreciated

thanks guys

2007-12-08 14:01:04 · 4 answers · asked by meee 2

Why does the U.S. keep spending billions of dollars sending the space shuttle into orbit for no apparent reason? Humans will never be able to go to places like Mars or Jupiter to live so why not spend the money on things like starvation to feed the needy right here on earth?

2007-12-08 14:01:04 · 9 answers · asked by Baby Baby Baby 2

For each of this:
* squid lobster
* american oyster
* venus fly trapplant
* blue mussel

Give me please name of their:

Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
Subspecies

2007-12-08 13:05:01 · 1 answers · asked by vica 4

I have a reason for believing it can , only after a few answers will I attempt to tell you why i ask.

2007-12-08 12:26:24 · 21 answers · asked by Anonymous

It became apparent to Watson and Crick after completion of their model that the DNA molecule could carry a vast amount of hereditary information in its

a. sequence of bases.

b. phosphate-sugar backbones.

c. complementary pairing of bases.

d. side groups of nitrogenous bases.

e. different five-carbon sugars.

2007-12-08 12:19:08 · 4 answers · asked by Cass 1

does anyone have easy to read eye gene chart. Like one that explains how some are dominate and some are ressesive. Thank you.

2007-12-08 11:09:05 · 2 answers · asked by Just here to help 4

2007-12-08 10:54:20 · 1 answers · asked by Holly D 3

2007-12-08 10:03:23 · 19 answers · asked by Anonymous

2007-12-08 08:03:05 · 3 answers · asked by Anonymous

2007-12-08 07:02:06 · 9 answers · asked by Anonymous

lets say humans no longer had to talk.

they would lose their voice one day or another won't they?
then how long would it take for humans to only be able to croak a bit and not be able to talk properly?
hundreds of years? or thousands?

and what would be the process of humans losing their voices?
because of the genes?

2007-12-08 05:36:12 · 3 answers · asked by scoobert 2

Do mistakes happen during translation? What could be the consequences of mistakes? Are there any mechanisms in place to avoid this?

Plz provide me with a brief explanation. Best nswer will get 10 points.

2007-12-08 05:03:15 · 6 answers · asked by varghese p 3

list the hormones released from the pancreas and the adrenal glands, and indicate their control mechanisms.

what does it mean by control mechanisms?

2007-12-08 02:52:18 · 4 answers · asked by Anonymous

a.)Which is the most crucial step in the performance of a differential staining procedure? pls. explain
b.)why is it essential that the primary stain and the counterstain be of contrasting colors?

2007-12-08 00:43:05 · 2 answers · asked by Richmond V 1

What are the advantage of differential staining procedures over the simple staining technique?

2007-12-08 00:34:36 · 2 answers · asked by Richmond V 1

What are the functions of:
1. Carbon
2. Hydrogen
3. Oxygen
4. Nitrogen

2007-12-07 22:10:41 · 3 answers · asked by Bart R 1

give one word
1> tall grass cultivated for their nutritious seeds: ____
2>growing together of plants that help each other growth:________

2007-12-07 21:58:26 · 5 answers · asked by Anonymous

2007-12-07 21:44:34 · 17 answers · asked by Jay M 1

2007-12-07 21:01:02 · 6 answers · asked by Anonymous