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5 Written questions

5 Matching questions

  1. homologous structure
  2. behavioral isolation
  3. phylogeny
  4. example of stabilizing selection
  5. fossil
  1. a newborn babies have intermediate weights, not too heavy or too tiny
  2. b when differences in courtships, appearance, chemicals or vocalizations prevent reproduction
  3. c the history of organismal lineages as they change through time
  4. d a body part with the same basic structure and embryonic origin as that of another organism, though not necessarily the same in function
  5. e preserved remains or traces of previously living organisms

5 Multiple choice questions

  1. members of a population compete for existing resources
  2. when natural selection favors the extremes
  3. when members of a population are prevented from mating because they have different mating seasons
  4. a rapid, sharp decrease in many species
  5. the recombination of different genes within the genome

5 True/False questions

  1. allele frequencythe fraction of different forms of a given gene in all of the members of a population


  2. speciationthe process by which new types of organisms arise


  3. mutationthe process by which new types of organisms arise


  4. example of disruptive selectiongray rabbits are easily detected in front of black or white rocks


  5. adaptive radiationwhen members of a population have different traits that are passed on genetically to offspring


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