Fossils

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  • Fossils
    • New Species
      • Result of Isolation
        • A species becomes geographically seperated
    • Speciation
      • populations become sodifferent
        • interbreeding cannot happen anymore
    • Speciation
      • Extinction
        • Competing for
          • Food
          • Water
          • Space
      • fossil records
        • Evidence of species before life
    • Fossils
      • Often incomplete
      • Evidence for early forms of life
      • learn how organisms have changed
      • Theory of evolution
    • Variation
      • wide range of alleles that control their characteristics
    • Natural Selction
      • alleles which help an organism to survive
        • selected in each population
    • Extinction
      • New more succesfful competitors
      • Changes to enviroment - Geological change
      • New Predators
      • New Diseases

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