Biology (Science & Mathematics) - June 2007

99% of life needs oxygen to survive, so how did all life come about without plant life to covert carbon dioxide to oxygen? Plant life could not have came from a chemical pool of bacteria when there DNA and cell make up are completely different.

2007-06-11 12:49:55 · 6 answers · asked by Anonymous

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Is the eye, respiratory, nervous, or digestive system even possible with evolution?

So many elements have to be present at the same time for them to function at all. So how did they have a chance to evolve slowly without all components, they would be useless and would not be beneficial to the evolutionary process (evolution would expel them before they were useful).Imagine yourself without half of the elements for you nervous system you would not be possible.

2007-06-11 12:31:28 · 6 answers · asked by Anonymous

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Is depth perception the reason why our brains get fooled by optical illusions?

2007-06-11 12:15:59 · 3 answers · asked by Ting 4

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why doesnt the brain have a limit on how much information it can hold?

2007-06-11 10:03:56 · 18 answers · asked by malagutial 1

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Is it possible to have a brain transplant?

2007-06-11 08:57:30 · 14 answers · asked by Imad B. 1

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Is Humanity considered a ring species?

i was reading about rings and the qualifactions to be a ring species are to have some differences in the population groups and that only some populations were able to interbeed with others.
it seems obvious that there are anyotomical differences amoung the human population groups, but they can all interbreed with one another.
so, is haumanity a ring? if not then is suspect it must be in a catogory all it's own, because no other species has spread across the earth like we have.

2007-06-11 08:06:36 · 2 answers · asked by Anonymous

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What do plants use proteins for?

I'm doing GCSE so the answer should be pretty basic. I thought proteins were used to make cellulose or does it make chloroplasts. Really confused as all i'm seeing is plants convert nitrates into amino acids thus proteins. So what do plants use proteins for.

2007-06-11 06:57:34 · 9 answers · asked by dlg3579 3

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When our finger touch something sharp we will feel pain.?

Is the feeling felt by the brain or the finger? what i think is that the receptor stimulated and impulse is sent to the brain. but is there any better explanation about this?

2007-06-11 05:50:32 · 8 answers · asked by dib 1

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DNA help!!!!!!!!!?

I have to write a paragraph on DNA. I have no idea where to start! Can anyone help me please?

2007-06-11 03:07:56 · 8 answers · asked by Joshua S 1

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Has anyone heard why the St Louis area did not experience the emergence of the 17-year cicadas this year?

2007-06-11 02:59:02 · 2 answers · asked by greg m 1

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Evolution isn't true?

If you look at fossils from millions of years ago, there's no change. Just look at the fossils of fish and other sea life. They look exactly the same. The same is true for ants and other insects. Shouldn't they look totally different if it was true?

2007-06-11 02:38:30 · 15 answers · asked by Anonymous

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how can we open our third eye?

2007-06-11 00:41:20 · 9 answers · asked by Anonymous

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pls sience studient male and female should answer this one,very important?

pls can any one tell me the 5 blood test needed before going into marriage??inother to affiod barrenness and sickler children,pls i need to know

2007-06-10 23:47:27 · 2 answers · asked by Anonymous

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Evolution again?

The guy who came up with intelligent design (Michael Behe) has written another book. In it he claims that although evolution can explain a few things - notably things like virus, it cannot explain many other things - there simply is not enough time, given what we know about the frequency of mutation and the need to develop many complicated biological systems 'overnight'.

2007-06-10 21:25:49 · 9 answers · asked by Anonymous

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