NAME: ________________________

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5 Written Questions

5 Multiple Choice Questions

  1. the idea that change occured in a few thousand, rather than a few million years
  2. results from barriers to succesful breeding between population groups in the same area
  3. the internal and external structure and appearance of an organism
  4. the movement of individuals out of a population
  5. a species is a population of organisms that can succesfully interbreed but cannot breed with other groups

5 True/False Questions

  1. speciationthe process of species formation

          

  2. directional selectionindividuals with either extreme variation of a trait have greater fitness than individuals with the average form of the trait

          

  3. gene flowthe idea that speciation occurs at a regular, gradual rate

          

  4. genetic driftthe phenomenon by which allele frequencies in a population change as a result of random events, or chance

          

  5. stabilizing selectionindividuals with the average form of a trait have the highest fitness

          

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