What Fossil Evidence Supports the Hypothesis of Modification by Descent,or

question 10

Multiple Choice

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

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