The key chemical precursors of life are abundant throughout our universe. Organic molecules form so easily that amino acids, purines and pyrimidines have even been found in meteorites. Simple chemical reactions can produce complicated compounds, such as ribose (a five carbon sugar that is a key ingredient of RNA) as well as organic molecules known as nucleobases (adenine, cytosine, guanine and uracil). This has been reproduced many times in laboratory experiments. Under natural (or laboratory simulations) phosphate reacts with ribose and nucleobases to form a large organic molecule called a nucleotide. Again, under reproducible conditions, nucleotides can link together to form RNA. Molecular biologists have demonstrated, again with laboratory controls, that RNA can both store genetic information and catalyze chemical reactions (like enzymes). Undoubtedly the precursor to the evolution of life would have been a phenotypic RNA world.
2007-02-28 03:53:08
·
answer #1
·
answered by Dendronbat Crocoduck 6
·
0⤊
0⤋
Here's are a few simple clues. Your body is about 96 percent water, H2O. Your body has to have salts to survive, NaCl, K, etc etc You have to have micro-minerals and nutrients to be healthy, Mn, Ca, etc etc.
So you see you are and therefore all living things are dependent on inorganics. Take your vitamins you'll be a healthier person.
2007-02-27 23:48:27
·
answer #2
·
answered by Anonymous
·
0⤊
0⤋
use this link as a starting page for your research/studying
Otherwise go to to the library and start looking into some biology textbooks about this subject
2007-02-28 01:02:31
·
answer #3
·
answered by convictedidiot 5
·
0⤊
0⤋
If I knew the answer... I'd be God.
2007-02-27 23:03:10
·
answer #4
·
answered by Askhole Ninja 3
·
0⤊
2⤋