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Dennis_Churaev [7]

3 years ago

6

The evolution of organisms that use oxygen in their respiration was possible only because of the action of a group of bacteria t

hat produced oxygen and changed the earth's atmosphere from an anoxic one to one rich in oxygen. that group of bacteria was:

1 answer:

iren2701 [21]3 years ago

8 0

Photosynthetic bacteria changed the Earth's atmosphere

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