Natural Selection

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  • The caterpillars are different color due to mutations in the gene pool. The light caterpillars are not able to survive as much as the dark colored caterpillars.
  • The yellow caterpillars struggle to survive due to their inability to camouflage, therefore the bird can eat them.
  • The brown caterpillars are able to survive more than the yellow ones, therefore the brown ones are able to reproduce more but still they have the yellow caterpillars genes.
  • Genetic Variation
  • Since the brown caterpillars survive longer and reproduce more they will eventually pass on their traits a lot more.
  • Over production/ struggle to survive
  • Differential survival and reproduction
  • Changes in the gene pool
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