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Based on the theory of evolution, in which rock layer would we find the least biodiversity?.

User Musk
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based on the theory of evolution, the rock layer that would have the least biodiversity would be : A. Devonian period The Devonian period exist between 60 million - 419 millions years ago. During this period, we still hasn't got enough mutation to create genetic variation. Less amount of genetic variation means less diversity
User Reddog
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