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What best explains the inability for life to exist in earth early atmosphere
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Identify the composition of oceanic and continental crystal rocks.in a model of earth’s interior,where would these rocks appear?
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Why does sexual reproduction increase the genetic variation in a species? a. sexual reproduction doubles the chromosome number. b. sexual reproduction produces organisms with no dna. c. the gametes in sexual reproduction are exact clones of the parents. d. a fertilized egg has a mixture of alleles from the two parents.
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Which of these best describes extinction events?...
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