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Fossil Evidence Indicates That Prokaryotic Cells First Existed on the Earth

Question 15

Multiple Choice

Fossil evidence indicates that prokaryotic cells first existed on the Earth

A) 3.5 million years ago.
B) 3.5 × 1012 years ago.
C) 3.5 billion years ago.
D) 350 years ago.
E) 3500 years ago.

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