bbrooke453
bbrooke453 bbrooke453
  • 21-05-2014
  • Biology
contestada

Why do you think scientists think the first organisms did not need oxygen to survive?

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mstv1112 mstv1112
  • 21-05-2014
Nitrogen and Hydrogen were more prevalent in Earth's early stages of "life" and a lot of organisms live under water.
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