Multiple Choice
The first significant injection of oxygen into the environment was the result of
A) prokaryotic photosynthesis using photosynthetic pigments.
B) prokaryotes using organelles, which detoxified oxygen.
C) photosynthesis by chloroplasts in eukaryotes.
D) energy metabolism in mitochondria of eukaryotes.
E) improved gas and nutrient exchange allowed by the flexible cell membranes of eukaryotes.
Correct Answer:
Verified
Correct Answer:
Verified
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