Evolution: How life changes over time.

• The details of how an organism functions is controlled by stored information (the genetic code).

• If replication of the genetic code is imperfect, the code can change over time.

  • Changes (mutations) can be beneficial, neutral or detrimental.
  • Detrimental and neutral changes are more common than beneficial ones.
  • If a change increases survival or reproduction rates, it is more likely to be passed on to offspring.
  • If a change reduces survival or reproduction rates, it is less likely to be passed on to offspring.
  • Demo

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