alecmackie1575 alecmackie1575

25-11-2021
Biology

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according to the fossil record, how long ago do scientists believe life on earth first appeared?

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Jermari123 Jermari123

01-12-2021

Answer:

The earliest life forms we know of were microscopic organisms (microbes) that left signals of their presence in rocks about 3.7 billion years old.

Explanation:

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