Biology 120                Coevolution, Convergent Evolution, Adaptive Radiation                   R. Irwin

Coevolution:
    Examples:

Convergent Evolution:
   Examples: Adaptive Radiation:


QUESTIONS:
1.  The evolution of similar traits in distantly related species is called _____________.
2.  When species evolve in response to one another, it is called _________________.
3.  The evolution of many new species as each evolves through natural selection to fit a different aspect of the environment is called ___________________.
4.  Why would it be an advantage for flowers to evolve to attract a specific kind of pollinator, rather than all pollinators?
5.  Plants can't run away from insects.  How do they protect themselves from being eaten by insects?  How have insects evolved to eat plants despite this protection?
6. Consider the five main forms of microevolution: genetic drift, sexual selection,  gene flow, natural selection, and mutation.  Alleles for pesticide resistance ultimately originate through which form?  Alleles for resistance then evolve primarily through which form?
7. Through what form of microevolution does convergent evolution occur?
8.  Convergent evolution is expected to occur when:
      a. related species occur in different habitats
      b. distantly species occur in similar habitats
      c. few species are present in an environment
      d. many species are present in an environment
9.  Adaptive radiation is expected to occur when:
      a. related species occur in different habitats
      b. distantly species occur in similar habitats
      c. few species are present in an environment
d. many species are present in an environment
10.  Describe how convergent evolution has occurred between placental and marsupial mammals
11. Describe how adaptive radiation has occurred in Darwin's Finches