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seraphim [82]
2 years ago
8

What types of evidence allow scientists to infer that single-celled life likely existed 3.8 billion years ago? Select all that a

pply.
A. transitional fossils in ancient rocks
B. certain forms of carbon in ancient rock
C. fossil evidence, such as stromatolites
D. evidence of extinction events
Biology
1 answer:
GarryVolchara [31]2 years ago
8 0

Answer:

c

Explnation: fossil evidence, such as stromatolites

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