What fossil evidence supports the hypothesis of modification by descent,or adaptation,of early Earth's bacteria?
A) the presence of distinct stromatolite morphologies and stromatolite formations in both lake and marine environments
B) cyanobacterium fossils,which have one of the earliest appearances in the fossil record
C) the presence on non-photosynthetic bacteria
D) the presence of spherical,rod-shaped,and spiral prokaryotes
Correct Answer:
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Q1: Q2: The structure of a prokaryotic ribosome is Q3: Which of the following is a defining Q4: The first genetic material on early Earth Q6: The first genes on Earth were probably Q7: Which of the following is an accurate Q8: Bacteria can rarely colonize and contaminate foods Q9: Which of the following is likely the Q10: On early Earth,more than 4 billion years Q11: On early Earth,what substance is hypothesized to
A)DNA
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