Science & Mathematics - 19 October 2006

explain why the bone cell is the basic unit of structure and function of the skeletal system?

2006-10-19 09:21:14 · 7 answers · asked by lilmanlarry220 1 in Biology

2006-10-19 09:20:35 · 7 answers · asked by chipper1963 1 in Chemistry

how do u calculate birth rate, death rate .. for a country... is there any formula for it ?

2006-10-19 09:20:21 · 10 answers · asked by stanezzz 1 in Geography

Hint: set up a unit cube with one corner at the origin

2006-10-19 09:19:27 · 7 answers · asked by -Angel- E 1 in Mathematics

2006-10-19 09:08:55 · 5 answers · asked by jimsrader 1 in Mathematics

What is the measure of each angle in triangle PFA?


I hope the question makes sense.. the m(variable) is where an angle sign would be approached. :)

Thanks.

2006-10-19 09:08:43 · 5 answers · asked by Ryan 1 in Mathematics

Let say I have

Li and S
F and F
CH3OH

If as such for example, how would I identify them between ionic or covalent like how would i distinguish them??? Please explain

2006-10-19 09:08:02 · 10 answers · asked by Anonymous in Chemistry

-4 is a zero of the polynomial x^3-2x^2-11x+52, what are all the other zeros?

2006-10-19 09:07:19 · 9 answers · asked by Anonymous in Mathematics

A student borrowed money for medical school costs. There is no interest. After 61 monthly payments, the loan balance was $24,563. After 77 monthly payments, the loan balance was 17,891. What are the values and the meaning of the slope of the line representing the loan balance? What was the original amount of the loan?

2006-10-19 09:05:43 · 5 answers · asked by *only~wishful~thinking* 3 in Mathematics

2006-10-19 09:05:36 · 21 answers · asked by nicci p 1 in Geography

2006-10-19 09:00:58 · 10 answers · asked by OMGwhatdidyousay!!! 2 in Biology

The milk used has 1% fat and the ice cream has 25% fat. James is in charge of making shakes. Today's mix had a total of 9% fat. If James used 8 quarts of milk, how many quarts does the entire mixture contain?

2006-10-19 08:59:47 · 3 answers · asked by Ryan 1 in Mathematics

that will show the three main parts of a eurakaryotic cell?

2006-10-19 08:59:24 · 2 answers · asked by OMGwhatdidyousay!!! 2 in Biology

Does anyone know the function of the ulna and tibia? I know that they are used in the movement and the arms and legs, but why are there 2 bones in the lower arms/legs?

2006-10-19 08:57:52 · 3 answers · asked by darcy_t2e 3 in Biology

When the planet Mars becomes habitable, or we make it habitable; and we have the technology to go to the red planet; should we maybe cross-breed our animals? Like the Liger that's crossbred from a lion and tiger.Cross-breed them so that we would have some unique, or almost unique animals on the red planet?
I mean wouldnt that kinda suck or seem boring everything was the same on mars as it is on Earth?Wouldnt it be more interesting if we sent some almost different animals and stuff to mars so that it would be unique and standout from the earth.Yes, the first animals would be decendents of animals on Earth,but eventually after a couple of generations or so, they would stand out as unique.
The animals,plants,and maybe food assuming it's all heathy and everything.

So who thinks it's a good idea?And who thinks I've lost my mind?

2006-10-19 08:56:08 · 14 answers · asked by Maurice H 6 in Astronomy & Space

I volunteered to help out at a science festival thing at an elementary school, but the topics are all physics-related, so I have no idea what they are:
1. standing waves (demo:slinky)
2. resonance (demo:tuning fork, Chinese spouting bowl)
3. energy conversion (demo:metal balls you strike on paper to burn a little hole, name?)
4. temperature (demo:polarized light crystal sheet)

Give me a little background (easily understood, I don't really want to know too many physics terms) on each, and how to explain it to little kids... Thanks! :)

2006-10-19 08:54:25 · 5 answers · asked by nice guys finish last 2 in Physics

cell wall and celll membrane




ribosomes and endoplasmic reticulum




chromatin and chromosomes




mitochondria and chloroplast




if you get it right you get ten points

2006-10-19 08:54:09 · 3 answers · asked by OMGwhatdidyousay!!! 2 in Biology

What is the set of integers that makes this statement true?

2006-10-19 08:52:35 · 6 answers · asked by Ryan 1 in Mathematics

i need some images so i can make a model of ATP

2006-10-19 08:51:07 · 4 answers · asked by DAMON 2 in Biology

Nucleolus and nucleus






if you get it right ten points

2006-10-19 08:50:07 · 8 answers · asked by OMGwhatdidyousay!!! 2 in Biology

2006-10-19 08:48:38 · 1 answers · asked by Anonymous in Chemistry

Why does this reaction have to be carried out above room temperature, and also why below boiling point?

2006-10-19 08:47:03 · 4 answers · asked by snowpatrol161 2 in Chemistry

Is it some sort of spirit visiting?

2006-10-19 08:46:11 · 5 answers · asked by jmbianchi23 1 in Other - Science

A Car with four wheel drive has mass m=1000 kg. Its weight is evenly distributed among the four wheels, whose coefficient of static friction with the road =0.80. If the car starts from rest and the road is horizontal calculate the maximum acceleration it can attain without spinning its wheels?

2006-10-19 08:45:03 · 3 answers · asked by activegirl 1 in Physics

2006-10-19 08:41:40 · 6 answers · asked by Anonymous in Mathematics

2006-10-19 08:39:25 · 10 answers · asked by Anonymous in Weather

PLEASE HELP ME!

2006-10-19 08:38:07 · 3 answers · asked by angie s 2 in Earth Sciences & Geology

in england

2006-10-19 08:37:44 · 9 answers · asked by no-one listens... 2 in Mathematics

This question deals deals with either connections to algebra or properties of real numbers.

2006-10-19 08:32:53 · 8 answers · asked by Michael N 1 in Mathematics

2006-10-19 08:32:36 · 8 answers · asked by Ryan 1 in Mathematics