Biology, asked by towerdefensememe1234, 1 month ago

Suggest how we know when the different kinds of organisms first appeared on Earth ?

Answers

Answered by prdhann

1

Answer:

firstly there were only marine animals on earth. then they evolved and rest u know know

Answered by shreyamaurya589

2

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. The signals consisted of a type of carbon molecule that is produced by living things.

Explanation:

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