Biology: Natural Selection

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  • Principle #1 - Genetic Variation Variation exists within the mountain goats. some goats are black while some are tan.
  • Principle #2- Overproduction and the Struggle for Existence Mountain Goats are able to produce offspring, but not all the goats could survive.
  • Principle #3-  Differential Survival and Reproduction Predators such as Wolves hunt down the black goats because of their dark fur. The Tan Goats match well with the environment.
  • Principle #3- Differential Survival and Reproduction Since The Tan Goats matched the environment more than the Black Goats, They will be able to reproduce more offspring.
  • Principle #4- Changes in Gene Pool Because the Tan Goats are able to survive more longer than Black Goats, The Mountain Goat will have more Tan Goats than Black Goats.
  • And this is Natural Selection!
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