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Jesse Lutz
Biology
29 June, 10:33
What were the first single-celled organisms like?
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Hugh Pruitt
29 June, 10:42
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The first living things on Earth, 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, just a few hundred million years after the formation of the Earth itself.
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