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Storyboard Szöveg

  • Overproduction:
  • Variation:
  • Environment:
  • A snake with the dominant allele, tan and long body, reproduces with a snake that has the recessive allele, green and short. They overproduced because life in the mountains is home to many bald eagles therefore, not many offspring survive.
  • Struggle:
  • The 2 snakes overproduce and made a variation in their offspring, being that one of them had the recessive gene with green and short body. Now there are lots of snakes with different body types and colors.
  • Selection:
  • A flock of bald eagles cover the sky. The tan snakes stand out more and get eaten because they are bigger and don't match the grass's color. The short green ones blend more into the grass and are smaller, therefore, they are harder to spot and don't get eaten.
  • Differential Reproduction:
  • The snakes compete for shelter, food, mates, and avoiding predators. Only some will survive to reproduce and the rest will die.
  • The bald eagles are more attracted to the tan snakes because they aren't camouflaged and are bigger. The bald eagles eventually eat all the tan snakes. The short and green snakes develop structural adaption, being that their bodies change over time.
  • The snakes are now all green and short. But they still have the dominant allele of the tan and long body so that doesn't completely go away. There are fewer tan snakes than there are green now.
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