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5 Written Questions

5 Matching Questions

  1. biogeography
  2. hardy weinberg principle
  3. behavioral isolation
  4. vestigial structures
  5. speciation
  1. a form of reproductive isolation in which two populations develop differences in courtship rituals or other behaviors that prevent them from breeding
  2. b the study of where organisms live now and where they and their ancestors lived in the past
  3. c the formation of a new species
  4. d inherited from ancestors but have lost much or all of their original function due to different selection pressures acting on the descendant
  5. e states that allele frequencies in a population should remain constant unless one or more factors cause those frequencies to change

5 Multiple Choice Questions

  1. takes place when individuals near the center of the curve have higher fitness than individuals at either end
  2. structures that are shared by related species and that have been inherited from a common ancestor
  3. the number of times an allele occurs in a gene pool, compared to the total number of alleles in that pool for the same gene
  4. a trait controlled by only one gene
  5. the process by which organisms with variations most suited to their local environment survive and leave more offspring

5 True/False Questions

  1. disruptive selectionoccurs when individuals at one end of the curve have higher fitness than individuals in the middle or at the other end


  2. reproductive isolationseparation of a species or population so that they no longer interbreed and evolve into two separate species


  3. genetic driftrandom change in allele frequency caused by a series of chance occurrences that cause an allele to become more or less common in a population


  4. analogous structuresbody parts that share common function, but not structure


  5. polygenic traitsa trait controlled by only one gene


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