Biology - May 2007

2007-05-24 10:28:08 · 8 answers · asked by shack 2

What are the new orders? If they aren't how come?

2007-05-24 07:51:42 · 5 answers · asked by Me Encanta Espanol 4

2007-05-24 05:18:00 · 16 answers · asked by Anonymous

2007-05-24 04:14:35 · 3 answers · asked by foggyhart 2

I am debating taking Anatomy and Philosphy over Advanced Biology for my Senior Year Science credit. I am not a big fan of Biology and I think that anatomy would be a lot more interesting. And suggestions or comments about the classes?

2007-05-24 04:00:13 · 4 answers · asked by basketball_chick_3232 1

What is the natural way of changing sex (i mean how a man converts into woman naturally and how a woman converts into man).
and how is this medicall possible?

2007-05-24 03:43:50 · 8 answers · asked by Innocent 2

2007-05-24 03:36:19 · 11 answers · asked by NASTASHIA P 1

2007-05-24 03:33:29 · 6 answers · asked by Larry B 2

When I saw the question that said 'What part of the cell influences heredity', I just about shat myself.

2007-05-24 03:18:10 · 11 answers · asked by Katharine D 2

In white pine trees, the gene for needle shape has two alleles. A dominant allele produces straight needles and a recessive allele produces bent needles. The gene for cone length, which is located on a different chromosome than the needle shape gene, also has two alleles. The dominant allele produces long cones and the recessive allele produces short cones. The following cross is carried through to the F2 generation: a pine tree that is homozygous for straight needles and short cones crossed with a pine tree that is homozygous for bent needles and long cones. The phenotypic ratio in the F2 generation is:

2007-05-24 03:08:20 · 4 answers · asked by Anonymous

1. Brown eyes are dominant over blue eyes. The expected F1 generation from a cross between a homozygous brown-eyed woman and a blue-eyed man would be:

2. In guinea pigs black is dominant over brown. If two heterozygous black guinea pigs are bred, _____ out of 4 offspring should be black.

3. Assume that long ears (L) are dominant over short ears (l) in rabbits. A long-eared female mates with a short-eared male and produces 4 long-eared bunnies and 1 short -eared bunny. The genotypes of the 2 parents are:


4. Blue flowers are produced by a dominant gene. The recessive allele produces white flowers. In a test cross, a plant with blue flowers of undetermined genotype is crossed with a:

5. Which of the following is (are) the correct gamete(s) for an individual with the genotype RRYy?
A. R, R, Y, Y.
B. RRYy.
C. RR, Yy.
D. RY, Ry.

2007-05-24 03:07:30 · 3 answers · asked by Anonymous

2007-05-24 02:55:08 · 5 answers · asked by Anonymous

Scientists claim to know what ingredients were present when life spontaneously began. But they are unable to recreate life in a laboratory. In the 50's a scientist named Miller was able to create amino acids. That is as close as they have gotten.

2007-05-24 02:11:00 · 16 answers · asked by brain_hanger 2

my professor said the charge I get when I have 2 electrodes and voltemeter depends on the location I put the electrodes how???
also in the book -ve charge has negative deflection(down ward) and vice versa but in the ECG figure all (depolarization and repolarization )are drown upward why?/


i have exam on sunday

2007-05-24 01:12:10 · 2 answers · asked by the boy 2

Bacteria grow very quickly.
They reproduce about every 20 minutes.

It has been estimated that if unlimited space and food were avaliable for a single bacterium, after 2 days of reproduction there would be a mass about 4000 times that of the Earth.

yeah right!! anyone with me?

2007-05-24 00:54:49 · 4 answers · asked by Anonymous

I have a copy of the photosynthesis equation from an Indiana biology text, however the explanation seems vague and I'm not really getting it. I assume it has something to do with bonding, but not sure exactly how to explain this to my son, the one with the question. Thanks for any clarification you can provide me.

2007-05-23 22:49:18 · 3 answers · asked by Anonymous

2007-05-23 21:28:14 · 8 answers · asked by Anonymous

Since sound is the perception of vibrations through the sense of hearing, , how can there be a sound if there is no ear (no human - no animal at all) to transfer that vibration into a sound?

There would still be a vibration but not a sound, since sound occurs in the ear...right?

2007-05-23 19:20:28 · 9 answers · asked by Dee 2

2007-05-23 18:20:42 · 1 answers · asked by kregit 3

A: stimulates the body's metabolic rate
B: regulate sthe amount of calcium in the blood
C: causes the heart to to contract and pump blood
D: increases the excretion of calcium by the kidneys

2007-05-23 16:48:10 · 4 answers · asked by janet v 1

2007-05-23 16:41:32 · 3 answers · asked by nosoop4u246 7

A- other viruses
B-bacteria only
C-any available host cell
D-cells undergoing the lyctic cycle

2007-05-23 16:31:49 · 2 answers · asked by lucyvasquez80 1

In science right now we are doing biology. We went to a forest and we had to take pictures of various plants and identify them. Unfortunately, i cant find these species, or, i don't know exactly how to find what they are called.

Does somebody know the names of these plant species?

http://img.photobucket.com/albums/v310/trin250/100_0803.jpg

http://img.photobucket.com/albums/v310/trin250/100_0804.jpg

http://img.photobucket.com/albums/v310/trin250/100_0811.jpg

http://img.photobucket.com/albums/v310/trin250/n500842881_50197_7287.jpg

http://img.photobucket.com/albums/v310/trin250/n500842881_50152_6967.jpg

http://img.photobucket.com/albums/v310/trin250/100_0806.jpg

Thanks!

2007-05-23 14:21:21 · 2 answers · asked by Sonya Scott 1

2007-05-23 14:15:45 · 4 answers · asked by Cassie B 2

Which of the following structures and events occur in both gymnosperms and angiosperms, and which occur only in angiosperms: wind pollination, animal pollination,pollen grain, pollen tube, fertilization quickly following pollination, double fertilization , embryo sac, endosperm.

2007-05-23 13:59:29 · 2 answers · asked by I_NEED_HELP112211 1

does any body know what the products and reactants of respiration are? please help!! thanks

2007-05-23 13:55:28 · 3 answers · asked by smashley 1

A parent has one dominant allele for black fur and one recessive allele for white fur. The other parent has two recessive alleles for white fur. In this cross what is the chance that the offspring will have white fur? What is the chance they will have black fur? What is the chance that they will have the recessive genotype?

2007-05-23 13:40:31 · 3 answers · asked by Anonymous

2007-05-23 13:26:37 · 6 answers · asked by Michel G 1

2007-05-23 12:59:28 · 6 answers · asked by Katie G 1

do they want blood from humans?

2007-05-23 11:07:47 · 4 answers · asked by Anonymous