Biology, 14.02.2020 18:02 gonzalesrosalinda66
What was the "oxygen revolution," which took place 2.3 billion years ago?
A)The "oxygen revolution" was the rapid increase in atmospheric oxygen that took place 2.3 billion years ago, immediately preceding the origin of animals.
B)The "oxygen revolution" was the rapid increase in atmospheric oxygen that took place 2.3 billion years ago, with the origin of plants.
C)The "oxygen revolution" was the rapid increase in atmospheric oxygen that took place 2.3 billion years ago, dooming many prokaryotic groups..
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What was the "oxygen revolution," which took place 2.3 billion years ago?
A)The "oxygen...
A)The "oxygen...
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