What is the evidence that explains how we share a common ancestor with chimpanzees? There is chromosomal and DNA evidence. What do these lines of evidence look like? What is the explanation for how mutations arose to separate our lineages?
Friday, September 27, 2013
Saturday, September 21, 2013
Fossil Evidence for Bacteria
What fossil evidence exists for bacteria? How do scientists know bacteria existed 3.5 BYA? (Hint: look up stromatolites)
Friday, September 13, 2013
Vestigial Structures
What are vestigial structures? How are they used as evidence that evolution has taken place? Give several examples of vestigial structures and explain the current and previous function of these structures.
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