Multiple Choice
The accumulation of free oxygen in the atmosphere ____.
A) was a result of the accumulation of a by-product of a type of photosynthesis
B) caused the further spontaneous generation of life
C) provided the opportunity to extract more energy through anaerobic respiration
D) occurred immediately after the earth was formed
E) allowed for DNA to replace RNA as the primary data storage molecule
Correct Answer:
Verified
Correct Answer:
Verified
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