natural selection

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  • individuals in a species show a wide range of variation
  • this variation is becasue of variation in genes
  • individuals with characteristics most suited to the environment are more likely to survive and reproduce
  • the genes that allowed the individuals to be successful are passed to the offspring in the next generation

individuals that are poorly adapted to their environment are less likely to survive and reproduce, this means their genes wont be paseed onto the next generation. Given enough time, a species will eventually evolve.

evidence for natural selection:

peppered moths:

  • before the industrial revolution most moths were pale 
  • this meant they were camouflaged against the…


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