Science & Mathematics - 20 September 2007

a. Evolution is a passive process.
b. Individuals evolve.
c. All of the choices are true.
d. Organisms evolve structures because of need.
e. Evolution is deliberate and purposeful.

I think the answer is c. Just wanted to check. Thanks.

2007-09-20 03:33:29 · 6 answers · asked by sjane 2 in Biology

digested before they can be absorbed.

2007-09-20 03:32:10 · 3 answers · asked by venus 1 in Biology

2007-09-20 03:30:17 · 4 answers · asked by venus 1 in Biology

2007-09-20 03:26:47 · 5 answers · asked by Booyah! 3 in Chemistry

Advantages & Disadvantages of non-biodegradable materials?
Environmental concerns of Non-Biodegradable waste?
Mechanisms of Non-Biodegradable waste?

2007-09-20 03:25:18 · 7 answers · asked by Anonymous in Chemistry

2007-09-20 03:18:47 · 10 answers · asked by Lashanda M 1 in Mathematics

2007-09-20 03:18:44 · 5 answers · asked by Felix C 1 in Earth Sciences & Geology

2007-09-20 03:11:18 · 1 answers · asked by nicolerhooper 2 in Medicine

Two beetles run across flat sand, starting at the same point. Beetle 1 runs 0.52 m due east, then 0.82 m at 28o north of due east. Beetle 2 also makes two runs; the first is 1.71 m at 36o east of due north. What must be the magnitude of its second run if it is to end up at the new location of beetle 1?

2007-09-20 03:08:35 · 2 answers · asked by Anonymous in Mathematics

In order for protien to build muscle, does it have to be ingested & absorbed internally? Can it be absorbed by the skin and have the same results? In other words, can a high protien infusion, pack or poultice be put on your skin and have the same effect on your muscles as a high protien meal, drink or supplement. Does it have to be absorbed from the INSIDE OUT or can it go from the OUTSIDE IN? I'm very anxious to learn the answer to this. My aunt has post-polio and I'm trying to figure out how we can maintain the muscle she has left & maybe even build more.

2007-09-20 03:07:06 · 7 answers · asked by hiancan 1 in Medicine

2007-09-20 03:04:11 · 1 answers · asked by fluke_o_nature 1 in Earth Sciences & Geology

show how

2007-09-20 02:56:38 · 11 answers · asked by Harley 1 in Mathematics

different sprays. Here are 3 links with pictures
http://i53.photobucket.com/albums/g76/amjm102205/DSCF2473.jpg

http://i53.photobucket.com/albums/g76/amjm102205/DSCF2467.jpg

http://i53.photobucket.com/albums/g76/amjm102205/DSCF2458.jpg


Does anyone have any idea on what kind of spider it is?

2007-09-20 02:56:03 · 2 answers · asked by amjm102205 1 in Zoology

2007-09-20 02:55:51 · 13 answers · asked by Kim 5 in Paranormal Phenomena

My theory abou the universe is that...

A black hole was the source of the "Big Bang" the start of this universe, this can be explained because time can flow in 2 directions, forwards and backwards, so a black hole with time flowing backwards would expel matter instead of consuming it.

It is shown that all matter in the universe is moving away from all other matter and is speeding up, einstein said that matter travelling at a sufficiently high speed could in theory travel back in time, that means once all the matter in our universe reaches this speed it will move back in time to the point the universe was created (back to the black hole, with bacwards flowing time), this is where I am not sure what happens, does it just stop and fade from existence or does it all begin again?

If it begins again, I think this would mean we could have existed and died an infinite number of times again and again in a loop of time....

Is free will an illusion? are we just following a preset path

2007-09-20 02:54:08 · 16 answers · asked by Anonymous in Physics

1. Find the horizontal and vertical asymptotes of the curve.
y = (7 x + 6)/(x - 7)

i got 7 for x but whats y=

2. Find the horizontal and vertical asymptotes of the curve.
y = (x^2+2)/(7 x^2 - 34 x - 5)
x = (smaller value) is it 0
x = (larger value) is it 34?
y = no idead

3. Find the horizontal and vertical asymptotes of the curve.
y = (4 e^x)/(e^x - 5)
x= i got no idea how to solve for e
y= i got no idea what to do here

2007-09-20 02:53:08 · 1 answers · asked by ineedhelpbadly 2 in Mathematics

would we all become extinct like the dinosaurs?

2007-09-20 02:40:09 · 10 answers · asked by Anonymous in Earth Sciences & Geology

2007-09-20 02:37:51 · 7 answers · asked by Anonymous in Astronomy & Space

Roughly how many genes are there in a strand of DNA? Are we talking hundreds, millions, trillions?

2007-09-20 02:34:58 · 12 answers · asked by Smiler 3 in Biology

a strong cyclone with strong northeast winds ahead of a warm front will get lighter as a warm front draws near and even calm as the warm fron is right on top of the location. then as the warm front passes theris a shift to the south or southwest gradually increasing to the forecast speed.

2007-09-20 02:34:44 · 2 answers · asked by Anonymous in Weather

electron collides with the tungsten atom, temparature then increased.Temparature causes the electron to reach the higher atomic orbit that means electron got an accelaration . Thus there is produced a magnetic field and an eletrical field and emits electromagnetic radiation . But the electron cannt go back to its original orbit unless the temparature is decreased .So my question is that why the electromagnetic radiation continues to radiate?

2007-09-20 02:33:21 · 4 answers · asked by Saka Chowdhury 2 in Physics

2007-09-20 02:30:42 · 2 answers · asked by Robert M 2 in Mathematics

If W= F x S
then If we keep the work done constant..then..
Force should be inversely propotional to the displacement produced.....
but its ain't seen in the real lyf...
more is the force the more is the displacement and vice -versa.....

2007-09-20 02:30:13 · 5 answers · asked by King HVJ 2 in Physics

There is a theory that this universe exists with an infinite number of other universes in the "Multiverse" I wonder could this be true.

2007-09-20 02:17:41 · 18 answers · asked by Anonymous in Astronomy & Space

2007-09-20 02:16:06 · 1 answers · asked by chEn12 1 in Chemistry

2007-09-20 02:09:13 · 12 answers · asked by Ms Ghost 6 in Astronomy & Space

please help me! - i cant figure this out

2007-09-20 02:08:01 · 6 answers · asked by Max 1 in Biology

2007-09-20 01:56:27 · 3 answers · asked by grannie6100 1 in Geography

Writing a fictional book that I want to be based in fact.

2007-09-20 01:54:07 · 17 answers · asked by brian h 2 in Astronomy & Space

I know this is a crazy question, and I dont know if theres any way to measure this. Im just curious. Raindrops fall from pretty high up, so they have got to have tons of momentum . Just wondering if anybody knew the answer to this. In my physical science class we onced broke down the math on the flight of a rubber band...surprisingly they only fly about 15 mph.

2007-09-20 01:46:52 · 4 answers · asked by z71silveradodude 1 in Physics