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Science & Mathematics - 24 August 2007

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Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

according to evolution, everything has evolved, trees and plants are also life, can someone please tell me what the theory has to say about how they got there, just curious, thanks, also no copy and paste answers thank you

of course the tree came from a seed, but where did the seed come from?

2007-08-24 15:16:32 · 11 answers · asked by AFI07 5 in Biology

I recently received an email saying that mars is going to be closer than it ever has before to the earth. Apparently this hasnt happen for a very long time. I havent noticed anything out of the ordinary lately so im starting to think it was a hoax.

2007-08-24 15:10:41 · 18 answers · asked by FRED F 1 in Astronomy & Space

ganesh wanted to lift a heavy basket of books to the tree house. he found it difficult to to lift the books using the single fixed pulley. Why is that so?

2007-08-24 15:09:38 · 5 answers · asked by Anonymous in Physics

I need it in my project in biology

2007-08-24 14:54:47 · 5 answers · asked by dog questions 1 in Biology

Some people confuse the question of evolution and the question of the reductionist view on evolution. I think any scientist must accept evolution because the evidence is overwhelming. However, the reduction of evolution to the known laws of physics is a completely different question. Accepting evolution is not a question of proof. It is a question of evidence, and we have a lot. However, the question of its reduction to the known laws of physics is a question of proof. A reduction is a mathematical process. Not surprisingly at all, we don't have such a proof. A lot of the debate around evolution is related to this fact: we cannot tell if such a reduction exists. I feel that the pro evolution scientists feel threatened by this situation and lose their objectivity. Where is the weak link in this reduction : from evolution to chemistry, to chemistry to physics, elsewhere, or maybe none exists? We cannot tell. This doesn't threaten the evolution theory, only the reductionist view on it.

2007-08-24 14:45:00 · 5 answers · asked by My account has been compromised 2 in Biology

1

The present population, P, in thousands, of a town is related to the initial population of the town at time t = 0 by the formula

P = 125(3)(0.05t)

where t is measured in years. The town was populated in 1880.
What was the population of the town in 1880?

2007-08-24 14:28:18 · 4 answers · asked by Anonymous in Mathematics

Which substance is not an organic molecule?

2007-08-24 14:21:00 · 3 answers · asked by sweetangel489211 1 in Biology

1)A rectangle has a diagonal of 10 and length of 8. Find its width.
My answer is 6? correct?

2) The legs of an isosceles triangle are 13 units long and the altitude to the base is 12 units long. Find the length of the base.
My answer is 10? Correct?

If I'm wrong please explain to me how to do it. Thanks!

2007-08-24 14:19:14 · 10 answers · asked by Randy M 1 in Mathematics

I do understand(somewhat) Einstein's Theory of Relativity. However, what is time? The real question I'm getting at here is: Is time travel possible? If so, then why/how/how is "time" being manipulated to do this? Please, only give real, meaningful answers.

2007-08-24 14:13:00 · 11 answers · asked by Anonymous in Astronomy & Space

What are some chemical and physical properties of it, where is it found, who discovered it and does anyone has a fact about it that i probably dont already know??

2007-08-24 14:08:03 · 4 answers · asked by jay234 2 in Physics

2007-08-24 14:04:57 · 18 answers · asked by Marvin P 1 in Physics

If f is continuous on [2,4], f' exists on (2,4), and
f'(c) = { f(4) - f(2) } / 2, then cE2 (2; 4).

2007-08-24 13:42:21 · 1 answers · asked by quizzie 1 in Mathematics

Plasma is, in basic terms, the prevalent phase of matter found in stars, right? And it's extremely hot?

Wouldn't it then burn, not only anything that happens to touch it, but also whatever was inside it as well? The temperature of the air within the shield would be very high, it seems.

And don't answer just to tell me that "it's fiction". I'm well aware of that. But science fiction usually has some kind of scientific basis as well.

2007-08-24 13:27:19 · 3 answers · asked by Joshua C 2 in Physics

Systematics connects biological diversity to phylogeny.

What complications may make it difficut to determine phylogenetic relationships baesd on homology?

2007-08-24 13:19:30 · 2 answers · asked by Anonymous in Biology

Find the value of a^3 + b^3 + c^3 - 3abc
given that
a+b+c = 10 & a^2 + b^2 + c^2 = 83

2007-08-24 13:19:15 · 3 answers · asked by besst_gal 1 in Mathematics

I have a math problem and i dont know what order to do it in. Its algebra 1.

2007-08-24 13:12:52 · 5 answers · asked by tims1993 1 in Mathematics

firing up into another sun?.... mass?... or something else?....and, considering it's place in the solar system, COULD it have been a second sun, orbiting Old Sol?....

2007-08-24 13:04:46 · 7 answers · asked by meanolmaw 7 in Astronomy & Space

Is there actually new matter created, or are we all made of the matter from the beginning of time?

2007-08-24 12:47:55 · 7 answers · asked by ÐIESEŁ ÐUB 6 in Astronomy & Space

Not quite sure how to handle this. Any ideas?

2007-08-24 12:44:42 · 16 answers · asked by Anonymous in Medicine

2007-08-24 12:41:27 · 6 answers · asked by Anonymous in Other - Science

With the tools and knowledge we have today why do we still have diseases we can not cure?
There is no disease we cannot investigate and see how it works yet we must be realy stupid not to be able to find ways around it.
If anybody states money as the reason
Then how is it that we say our species is intelliigent when it is downright stupid by allowing itself to be trapped in such a silly excuse.

2007-08-24 12:41:25 · 9 answers · asked by Anonymous in Medicine

with a 1000 meter diameter.
would it go good on a space station?

2007-08-24 12:38:58 · 2 answers · asked by 22 4 in Astronomy & Space

2007-08-24 12:32:38 · 1 answers · asked by RogerDodger 1 in Mathematics

where the pressure is essentially zero?

2007-08-24 12:27:02 · 7 answers · asked by Helen 1 in Physics

2007-08-24 12:23:09 · 8 answers · asked by m-o-o-n 3 in Mathematics

it's for my project, if I can't add something to rid of the foul smell what type of container should I use that would keep the smell in? Any other suggestions to lessen the smell without altering the substance that would remove the urine's original chemical compound? ^___^

2007-08-24 12:20:21 · 8 answers · asked by ppppp 2 in Chemistry

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