briannahorns
briannahorns briannahorns
  • 15-04-2018
  • Biology
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What was the first living cells to evolve on earth?

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mathgeek122
mathgeek122 mathgeek122
  • 15-04-2018
Cell membrane or single cell-micro-organisms
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mberninger2018
mberninger2018 mberninger2018
  • 15-04-2018
It is generally believed that life first appeared sometime around 3.8 billion years ago. The first life forms were simple, single celled organisms with no nucleus. The first photosynthetic organisms were cyanobacteria, and the evolved about 3 billion years ago.
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