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Darwin's and Wallace's theory of evolution by natural selection includes five main parts:

  1. Variation: Individuals within a species exhibit variations in traits.
  2. Inheritance: Traits are passed down from parents to offspring.
  3. Overproduction: Organisms tend to produce more offspring than can survive.
  4. Struggle for Existence: Competition for limited resources leads to survival challenges.
  5. Natural Selection: Individuals with advantageous traits are more likely to survive and reproduce, leading to the gradual evolution of species over time.
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2mo ago

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