DawnhOdakate DawnhOdakate

23-05-2017
Biology

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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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