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5 Written questions

5 Matching questions

  1. homologous structure
  2. fossil
  3. mass extinction
  4. example of natural selection
  5. allele frequency
  1. a preserved remains or traces of previously living organisms
  2. b a body part with the same basic structure and embryonic origin as that of another organism, though not necessarily the same in function
  3. c the fraction of different forms of a given gene in all of the members of a population
  4. d the same genetic code for all living species
  5. e a rapid, sharp decrease in many species

5 Multiple choice questions

  1. newborn babies have intermediate weights, not too heavy or too tiny
  2. when members of a population have different traits that are passed on genetically to offspring
  3. when natural selection favors the extremes
  4. when populations are prevented from mating due to rivers, oceans, mountains, continental drift, etc.
  5. members of a population compete for existing resources

5 True/False questions

  1. Malthusian Parameterpopulations should expand exponentially but they don't


  2. temporal isolationwhen differences in courtships, appearance, chemicals or vocalizations prevent reproduction


  3. phylogenythe history of organismal lineages as they change through time


  4. speciationa change in the DNA sequence by changing, adding, or deleting one or a few nucleotides


  5. punctuated equilibriumwhen a population shows little evolutionary change but then rapid events of speciation occur