Chapter 22: Descent with Modification

  1. One of Darwin's observations is that resources are
    1. overproduced.
    2. unlimited.
    3. variable.
    4. reduced.
    5. limited.
  2. These various cultivated vegetables are all descended from the wild mustard. This is an example of
    1. adaptation.
    2. artificial selection.
    3. homologous structures.
    4. analogous structures.
    5. convergent evolution.
  3. Natural selection acts on
    1. heritable variation in populations.
    2. genetic variation in an individual.
    3. limited resources.
    4. adaptations.
    5. homologous structures.
  4. Mammalian forelimbs are examples of
    1. homologous structures.
    2. artificial selection.
    3. variation in populations.
    4. analogous structures.
    5. heterozygote structures.
  5. The ________ forms found in the fossil record supports Darwin's theory of evolution.
    1. molecular
    2. extinct
    3. embryonic
    4. transitional
    5. vestigial