DawnhOdakate DawnhOdakate
  • 23-05-2017
  • Biology
contestada

All early life must have been ____ organisms, because the earth’s atmosphere was oxygen-free during it’s early years.

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Аноним Аноним
  • 26-05-2017
single-celled organisms: All early life must have been single-celled organisms because the earth's atmosphere was oxygen-free during it's early years.
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