What kind of organism did we all start from?



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    Taking an evolutionary approach to this question, we all started come from the very first organisms that appeared about4 billion years ago.  Scientists believe that the first organisms formed out of a sort of self-contained chemistry experiment, forming out of organic material into biologicl compounds.  People are not sure whether the first living organisms were mainly DNA or amino acids aka proteins… both need eachother to replicate.  Whichever they were composed of, these first living organisms which we all evolved from were very simple.

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