Biology - April 2007

2007-04-30 23:59:27 · 2 answers · asked by Asheera 2

2007-04-30 22:35:58 · 29 answers · asked by Anonymous

2007-04-30 22:29:42 · 9 answers · asked by Anonymous

In mammals the original lifestyle consists of totally seggregated male and female spaces as represented by one of the oldest mammals ----- the elephants.

Mammals have no social pressures to do so. Males and females instinctively prefer that.

It is the same-sex sexual bonds that keep these male-only/ female only spaces strong and livable.

However, some males (around 5%) are exclusively 'heterosexual' (sic) & they need to live with females. Since they can't they become loners (as in elephants).

But, in species (such as horses or lions) where the females become weak (due to weakened same-sex bonds) these 5% males + 7% to 10% others who are predominantly so-called 'heterosexual', control these female spaces as harems.

That's the only heterosexual space that we know of in the natural mammalian setting (including tribal humans).

Males, especially love and need their male-only spaces. Destroying these spaces by heterosexualising them is the bigggest but unacknowledged....

2007-04-30 22:25:45 · 2 answers · asked by Dost 1

2007-04-30 21:30:07 · 8 answers · asked by ANONYMOUS 2

2007-04-30 20:41:26 · 6 answers · asked by Arvind D 1

I understand that once the trees in Africa started to diminish, our ancestors (Australopithicus afarensis, africanus, etc.) had to learn how to walk upright on the ground or natural selection would not favor them. But what caused the trees to diminish? A drought obviously... but what caused that? I heard that it was caused by the Himalayas, but that just doesn't sound right to me.

Christians: I'm begging you, PLEASE DON'T ANSWER WITH ANY SORT OF BIBLICAL REFERENCES OR VULGARITY AGAINST EVOLUTINO!!! PLEASE!?!?!?!? It's a damn shame that I have to ask Christians not to be rude.

2007-04-30 20:26:37 · 7 answers · asked by Mordecai36 1

2007-04-30 18:28:05 · 5 answers · asked by Anonymous

2007-04-30 17:24:48 · 8 answers · asked by flyerscapt 2

Ok, it says here in a book that I was reading that chromosomes were made of DNA and so are genes. Does that mean that genes are a fragment of our chromosomes that are designed for a specific function?
Here's another one. There's such a thing called homolugous chromosomes. Does that mean that one comes from the mother and the other comes from the father because the gene loci are identical and the alleles are varied in some cases?
Is the allele, then, a form of gene that perform the same function but are an alternative form instead?

2007-04-30 17:21:58 · 7 answers · asked by princess 3

im having trouble with my science homework and would like to know what are diffusion and osmosis. i have a hunch but im not quite sure. can someone pleeeease tell me what this question means? "why couldnt we get oxygen and nutrients into our body's cekks just by diffusion and osmosis"?

2007-04-30 17:02:51 · 4 answers · asked by Psycho Cucumber 1

A. producing pollen

B. fusing gametes

C. budding

D. producing seeds

2007-04-30 16:42:42 · 6 answers · asked by perfection7 2

1. Together respiration and photosynthesis keep the levels of carbon dioxide and oxygen in the atmosphere
a.fairly constant
b.constantly changingc.constantly increasing
d.constantly decreasing

2.How does a bacterial cell differ from a plant or animal cell
a.It is larger
b.It does not have a nucleus
c.It has no cytoplasm
d.It has no organelles
I really didnt know for question 2 if the answer was b. or d. but its not both.

3. What process results in genetically different bacteria?
a.binary fission
b.respiration
c.conjugation
d.asexual reproduction

4.what is the most abundant chemical found in living cells?
a.water
b.carbohydrates
c.protiens
d.nucleic acid

5. The SI unit for mass is the
a.ounce
b.pound
c.kilogram
d.liter

and heres one question about microscopes:
What is the total magnification of a microscope with 2 lenses when 1 lens has a magnfication of 15 and the other lense has one of 30?
you dont have to answer all the questions but please answer all the questions you KNOW

2007-04-30 16:05:00 · 5 answers · asked by Anonymous

Sulfur is needed by plants for



a. nitrogen fixation.

b. maintaining electrical neutrality.

c. amino acid and protein synthesis.

d. nucleic acid synthesis.

2007-04-30 15:59:58 · 2 answers · asked by Rachel r 2

If after buying a car the finace company cant find your credit score. Can that car company take that car back?

2007-04-30 15:39:42 · 3 answers · asked by Anonymous

what kind of chain reaction or impact will it have on us humans?

2007-04-30 15:38:29 · 5 answers · asked by oikos 2

just curious because everything has a tail but humans. and i would like to see what it would be like to have one anyways? no i am not wrong in any way just wanted to know not that i would actually do it just to see if it is possible which i think is possible.

2007-04-30 14:32:52 · 4 answers · asked by Lizard 1

thanks a whole lot!

2007-04-30 14:08:51 · 1 answers · asked by help_with_physics 1

hope it is understandable :) thanks!

2007-04-30 13:58:22 · 2 answers · asked by help_with_physics 1

thanks!

2007-04-30 13:51:06 · 2 answers · asked by help_with_physics 1

please enumerate and be as explicit as possible, thanks!

2007-04-30 13:47:54 · 1 answers · asked by help_with_physics 1

i have little idea on the question itself so please bare with me :( thanks..

2007-04-30 13:44:22 · 1 answers · asked by help_with_physics 1

okay i believe in evolution, i know the basis of it but dont know all the facts. ive heard about how the human body isnt that perfect since we waste most of our energy and its not really designed very well since we use the same hole for breathing eating and talking and if there was a god wouldnt he be smart enough to give us seperate holes for that so we wouldnt choke on our food and die. but i think its just really weird our genitals like fit together, sry that sounds kind of strange and gross but yeah, i just dont get how that could have happened, didnt the very very very 1st organisms just start out by splitting in half, wutever that is called, like in the movie evolution if uve ever seen it lol. plz i dont want to hear ne answers about intelligent design and God, ive heard it, not buying it. never have never will, so dont try to persuade me, only looking for scientific answers here.

2007-04-30 13:41:43 · 9 answers · asked by rockcandy123456789 2

2007-04-30 10:33:28 · 6 answers · asked by Anonymous

2007-04-30 09:18:55 · 6 answers · asked by squigglycameron 1

In females many estrogens like estradiol, are produced in the ovaries and testosterone is produced in the adrenal gland in both males and females. In males testosterone is also produced in the testes, so, where are estrogens produced in males? Is it also in the adrenal gland?

2007-04-30 08:52:09 · 3 answers · asked by Anonymous

Homework/Grades

2007-04-30 07:54:42 · 8 answers · asked by Anonymous

2007-04-30 07:41:38 · 9 answers · asked by chelsey c 1

Although viruses are not generally accepted in the scientific community as being part of any kingdom (since they are not considered living organisms), scientists do use systems to classifty them, usually according to the type of cell they infect.

--What would be the implications in medicine or sicence in general if there was a sixth kingdom started for the purposes of classifying viruses?

2007-04-30 07:33:18 · 4 answers · asked by Patootiee 1

2007-04-30 06:46:38 · 3 answers · asked by Deb S 1