Biology, 22.12.2019 16:31 inesperezferrere
Which of the following events occurred about 1.2 billion years ago and resulted in an increased rate of evolution for earth’s life forms?
development of sexual reproduction
development of photosynthesis
emergence of single-cell organisms
accumulation of atmospheric oxygen
Answers: 2
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Which of the following events occurred about 1.2 billion years ago and resulted in an increased rate...
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