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  • 1. Species exist in population
  • Individuals in a population vary anatomically, physically and behaviorally.
  • 2. Variation in individuals is inherited
  • Where did my prey go?
  • Variation in a population is from mutation in genes, gene flow and sexual reproduction
  • 3. Individuals in population reproduce
  • Mates are chosen based on biological factors(i.e. how they look, act, etc.)
  • 4. Competition
  • THATS MY TREE!!!!!!
  • Resources are limited(i.e. food, shelter from predator, mates, etc.)
  • Individuals with traits that allow them to survive and reproduce pass on their genes
  • No!! Where did that cow go? My leader will kill me.
  • Safe
  • 5. Survival
  • 6. Over time environment can shift
  • 7. Evolution is the change in traits over time
  • There are too many predators we must live here now
  • As habits change some variations in a population allow some organisms to survive and reproduce, passing their successful traits(genes), other individuals in the population die
  • Over time species change due to environmental changes and the individuals most suited for the environment survive to reproduce
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