Science & Mathematics - 21 December 2006

2006-12-21 10:35:55 · 29 answers · asked by ? 2 in Earth Sciences & Geology

im in school right now and i need this answer!!! please

2006-12-21 10:35:32 · 4 answers · asked by motoxkyled 1 in Astronomy & Space

1)each level of the food chain depends on the level below 2)energy travels in both directions in a food chain 3)the food web shows many interrelated food chains 4)consumers often compete for the same food source 5)most consumers eat a variety of foods

2006-12-21 10:33:57 · 11 answers · asked by bobbie jo e 1 in Physics

2006-12-21 10:32:51 · 5 answers · asked by Yolanda 1 in Biology

its from the periodic table of elements. to find the nuetrons u minus the atomic mass- atomic number.

2006-12-21 10:31:18 · 3 answers · asked by STAN 3 in Chemistry

What is the difference in both majors?

2006-12-21 10:31:07 · 5 answers · asked by Anonymous in Engineering

How do you convert an equation from tan to cot?
For example, how would you convert

y = 4 tan(3x) into a cot equation in the format y = a cot(mx +b)

2006-12-21 10:30:32 · 6 answers · asked by odonata 2 in Mathematics

2006-12-21 10:29:06 · 4 answers · asked by catherine m 1 in Engineering

What forces between water molecules are primarily responsible for many of water's physical properties?

a. ionic bonds
b. covalent bonds
c. The unshared electrons on the oxygen atom
d. gravity
e. Hydrogen bonds

2006-12-21 10:28:41 · 6 answers · asked by JoAnna 2 in Chemistry

so what is the purpose of DNA sequencing, and how is it done?

My basic understanding is that we can determine the order of the 4 bases in a fragment of DNA somehow using dideoxynucleotides, which stop synthesis because of a missing hydroxl group. I know that the human genome project has something to do with this process, but im confused what the connection is there.

explain in detail if you can, but most importantly i want to know the purpose and basic concept of DNA sequencing and the HGP.

2006-12-21 10:28:31 · 4 answers · asked by sakic_cikas 2 in Biology

since calcium phosphate is Ca3(PO4)2
molar mass of this compound is 310.2 then there are 8 oxygen atoms, right?

2006-12-21 10:26:28 · 2 answers · asked by silentcargo 3 in Chemistry

2006-12-21 10:25:16 · 5 answers · asked by Anonymous in Chemistry

2006-12-21 10:24:38 · 4 answers · asked by DJ C 4 in Engineering

i do good in math and i am thinking am taking calculus? for who has taken it. is it really hard?

2006-12-21 10:24:20 · 7 answers · asked by jEN 2 in Mathematics

2006-12-21 10:23:53 · 4 answers · asked by Anonymous in Chemistry

2006-12-21 10:22:28 · 13 answers · asked by iwannano 2 in Medicine

2006-12-21 10:21:57 · 2 answers · asked by Anonymous in Chemistry

2006-12-21 10:20:28 · 5 answers · asked by collegeray2006 1 in Weather

I guess I don't understand -- if its so dense and heavy, doesn't that mean the molecules are packed closely together? Then why is it "soft"? I've already read the wikipedia article on lead, and it hasn't answered this question -- so I leave it to the resident chemists to explain!

2006-12-21 10:19:50 · 7 answers · asked by Sara 3 in Chemistry

2006-12-21 10:17:26 · 3 answers · asked by MARIA-CHRISTINA 1 in Medicine

Who had the highest I.Q?

2006-12-21 10:15:19 · 20 answers · asked by Anonymous in Physics

Do you think they are observing us. But, we don't know about it and they're planning some kind of an invasion within 2 decades ? I just have this feeling we're being watched or listened to from far away. But, they're canceling their noise. So that we don't know about their position.

2006-12-21 10:15:04 · 12 answers · asked by sandwreckoner 4 in Astronomy & Space

2006-12-21 10:14:41 · 5 answers · asked by Yolanda 1 in Biology

2006-12-21 10:11:30 · 5 answers · asked by Pushpendra C 1 in Mathematics

how many

2006-12-21 10:10:16 · 15 answers · asked by Meow. 6 in Mathematics

the mass of the mouse is 44.1 (g) and the mass of the heart is 4.1 (g) Thanks

2006-12-21 10:10:14 · 2 answers · asked by Hayley B 1 in Mathematics

In the same Emisphere, there is a huge difference between contries whixch are close.

2006-12-21 10:06:48 · 3 answers · asked by Anonymous in Earth Sciences & Geology

1) Calculate the volume and surface area of the earth,assuming that it is a sphere of radius 6,370km.
Give your answer in standard form,
corrected to 3significant figures.

2006-12-21 10:05:32 · 1 answers · asked by star 2 in Mathematics

A group of crows is called a murder, a group of geese is a gaggle, and a group of lions is a pride. I'm curious to know what a group of wild boars is referred to as.

2006-12-21 10:04:41 · 14 answers · asked by jerseycowboy3 1 in Zoology

uh, how many dimensions exist? is time a dimension, and can someone explain what is space if it doens't have anything?

2006-12-21 10:04:11 · 6 answers · asked by Kamie S 1 in Other - Science