which is the world first living organisms
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Prokaryotes were the 1st .
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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. By far the longest portion of the history of life on Earth, therefore, has involved the biochemical evolution of these single-celled micro-organisms, bacteria and archaea. We can find individual fossilized microbes in rocks 3.4 billion years old, yet we can only conclusively identify multi-celled fossils in rocks younger than 1 billion years
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. By far the longest portion of the history of life on Earth, therefore, has involved the biochemical evolution of these single-celled micro-organisms, bacteria and archaea. We can find individual fossilized microbes in rocks 3.4 billion years old, yet we can only conclusively identify multi-celled fossils in rocks younger than 1 billion years
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