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  • 13-11-2018
  • Biology
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How are variations part of the theory of evolution by natural selection

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astultz309459
astultz309459 astultz309459
  • 13-11-2018

In 1859, Charles Darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. He defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

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