What fossil evidence exists for bacteria? How do scientists know bacteria existed 3.5 BYA? Include examples of the evidence they have. (Hint: look up stromatolites)
Friday, October 25, 2013
Saturday, October 19, 2013
Evidence of the Endysymbiosis Theory
Research what the Endosymbiosis Theory is and summarize it. Provide four pieces of evidence used to support it and explain the evidence so your audience can understand it.
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