Science & Mathematics - 27 January 2007

2007-01-27 11:24:12 · 3 answers · asked by twobizzybz 1 in Medicine

Like 90 degrees? more, less? need help...

2007-01-27 11:23:35 · 2 answers · asked by jilllemur 2 in Biology

Why do we find people of the opposite gender or people of the same gender attractive?

I am asking beyond the mating instinct, instead in connection with love and relationships. Why is it that we find some people attractive and others not? And why do we find some people sexually attractive and other 'partner material' and yet others both.

Please explain your answers and if possible (but not required) quote scientific evidence foy your answer. I thank you in advance for your insight.

2007-01-27 11:23:11 · 4 answers · asked by Arthur N 4 in Biology

2007-01-27 11:23:11 · 8 answers · asked by rainyday1512 1 in Geography

I'm doing a project on Dark Matter for my physics class, but all the sources that I have found on it assume that the reader has a certain amount of background knowlege which I seem to be lacking. Can anyone explain it to me in simple, 9th grade language? I'd really appreciate the help. :)

2007-01-27 11:22:23 · 3 answers · asked by Anonymous in Physics

2007-01-27 11:20:42 · 1 answers · asked by fisherman0707 1 in Engineering

2007-01-27 11:17:24 · 17 answers · asked by Anonymous in Botany

I know it sounds weird but while contemplating a story idea, and after watching a special on a Yellow Stone explosion, I wondered what it would look like from space. I mean what would the ISS astro/cosmonauts see? I'm sure the sky would be entirely black sulfur clouds and most means of communication with ground control would be gone. So what would they do?

How long would their supplies last? Wouldn't they need to eventually attempt a landing? Would it work? Wouldn't it look like the very alien worlds they were meant to explore once they land? They'd have to wear their space suits to breathe in the sulfur atmosphere, right?

I don't know anything about how astronauts and space technologies work, and I'd like this to be a particularly realistic yet epic story that explores how small man is compared to the collosal forces of the universe. So my question is how would this scenario play out, realistically.

2007-01-27 11:16:44 · 5 answers · asked by Smokey 2 in Astronomy & Space

The DNA content of a diploid cell in the G1 phase of the cell cycle is measured. If this content is 2x, then the DNA content of the same cell at metaphase of meiosis 1 would be

A) x
B) 4x
C) .5x
D) 2x
E) .25x

2007-01-27 11:16:37 · 2 answers · asked by ph103 1 in Biology

2007-01-27 11:16:20 · 9 answers · asked by alfreja03 1 in Physics

it has seven letters

2007-01-27 11:14:59 · 6 answers · asked by BethB 2 in Chemistry

Which famous philosophers mentioned evolution in their works?

2007-01-27 11:14:36 · 8 answers · asked by sparklycrayons 1 in Biology

a. minimum, -1
b. maximum, 11
c. maximum, -1
d. minimum, 11

2007-01-27 11:12:19 · 7 answers · asked by Anonymous in Mathematics

2007-01-27 11:11:35 · 12 answers · asked by septembrie06 1 in Astronomy & Space

wildlife animals

2007-01-27 11:11:31 · 7 answers · asked by Jill 1 in Zoology

2007-01-27 11:10:52 · 4 answers · asked by Anonymous in Earth Sciences & Geology

I have chemistry homework problems that i need help with. if you can help with explaining the answers too that would be so much help so i can actually understand this!
1. Is the following reaction and ocidation reaction or reduction reaction?
Ni(s)-->Ni^2+(aq)+ 2e-

2. Chemical properties of hydrogen compounds can have vast differences depending on the state of matter (solid, liquid or gas). The difference in chemical properties is related to

a.the dissociation of H+ from the hydrogen compound into solution.
b.the dissociation of OH- from the hydrogen compound into solution.
c.the energy threshold required to break the covalent bonds in the solid.
d.the slight cohesion of the liquid solvent forming the aqueous solution.

3. Choose the word that best completes the following statement. In a neutralization reaction an acid and base react to form water and ____.
a.salt b.metal c.ionic compound d. ester

2007-01-27 11:10:15 · 2 answers · asked by nice too meet you. 4 in Chemistry

2007-01-27 11:05:07 · 4 answers · asked by Michael S 1 in Biology

a. 1 real, irrational
b. 2 real, rational
c. no real
d. 1 real, rational

2007-01-27 11:03:47 · 11 answers · asked by Anonymous in Mathematics

2007-01-27 11:02:12 · 8 answers · asked by mischievious 2 in Mathematics

An employee who produces x units per hour earns an hourly wage of y = 0.55x + 7 (in dollars). Find the hourly wage for an employee who produces 13 units per hour.

2007-01-27 11:02:02 · 5 answers · asked by Mr.Archie G 2 in Mathematics

Solve. 4(7x + 10) = 3(9x – 5) + 20

2007-01-27 11:01:36 · 9 answers · asked by Mr.Archie G 2 in Mathematics

Evaluate. 21 ÷ 3 – 3 ÷ 3

2007-01-27 11:00:33 · 7 answers · asked by Mr.Archie G 2 in Mathematics

Evaluate.8 + 2 • 5 – 24 ÷ 6 • 2

2007-01-27 11:00:12 · 11 answers · asked by Mr.Archie G 2 in Mathematics

I was just thinking about this....I thought maybe cuz cars were dirty to start with and when the snow melted to brought the dirt down but if that were the case it would be like that for rain too.....even cars that dont drive end up getting dirty

2007-01-27 10:58:56 · 5 answers · asked by Sarah 4 in Weather

In what types of cells do the above processes take place?
(plant, animal, both, or neither

photosynthesis___________________

respiration:__________________

i'm supposed to find the answer online but i can't seem to find it anywhere

2007-01-27 10:56:45 · 8 answers · asked by ♥ 2 in Botany

2007-01-27 10:54:37 · 4 answers · asked by Horsiegrl 1 in Weather

a. (2x-7)^2=25
b. (2x-7)^2=5
c. (2x-7)^2= +5
d. 4x^2-28x+24=0

2007-01-27 10:54:13 · 5 answers · asked by Anonymous in Mathematics

2007-01-27 10:52:36 · 4 answers · asked by Anonymous in Mathematics

i need all info on agarose electrophoresis.pls help

2007-01-27 10:49:13 · 1 answers · asked by Anonymous in Chemistry