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Natasha_Volkova [10]
3 years ago
6

How did the first living things on earth come about?

Biology
2 answers:
krek1111 [17]3 years ago
6 0

Answer: single-celled micro-organisms or microbes lacking a cell nucleus or cell membrane known as prokaryotes, seem to have first appeared on Earth almost four billion years ago

Explanation:

Most of them are formed when large mats of microorganisms, known as microbial mats, trap sedimentary grains together. These microorganisms are usually cyanobacteria, a type of bacteria also known as blue-green algae. Cyanobacteria use the process of photosynthesis to obtain energy.

netineya [11]3 years ago
5 0

Answer:

The Cambrian explosion

Explanation:

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