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5 Written Questions

5 Matching Questions

  1. molecular clock
  2. temporal isolation
  3. polygenic traits
  4. speciation
  5. adaptation
  1. a uses mutation rates in DNA to estimate the time that two species have been evolving independently
  2. b any heritable characteristic that increases an organism's ability to survive and reproduce in its environment
  3. c form of reproductive isolation in which two or more species reproduces at the same time
  4. d the formation of a new species
  5. e traits that are controlled by two or more genes

5 Multiple Choice Questions

  1. structures that are shared by related species and that have been inherited from a common ancestor
  2. when individuals select mates based on heritable traits, such as size, strength, or coloration
  3. occurs when individuals at the outer ends of the curve have higher fitness than individuals near the middle of the curve
  4. body parts that share common function, but not structure
  5. takes place when individuals near the center of the curve have higher fitness than individuals at either end

5 True/False Questions

  1. fossilspreserved remains or traces of ancient organisms

          

  2. speciesa population or group of populations whose members can interbreed and produce fertile offspring

          

  3. natural selectionwhen individuals select mates based on heritable traits, such as size, strength, or coloration

          

  4. allele frequencythe number of times an allele occurs in a gene pool, compared to the total number of alleles in that pool for the same gene

          

  5. founder effectwhen allele frequencies change as a result of the migration of a small subgroup of a population

          

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