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Quiz 3 - Version C


 1.  Some type of caste system (reproductive division of labor)
     is present in all eusocial insects.

 2.  A biological clock regulates the activity cycle in all hemi-
     metabolous insects.

 3.  A honey bee's waggle dance communicates distance and direction
     of a food source to nestmates.

 4.  Under certain circumstances, a worker may become the new queen
     in a bee hive.

 5.  A sex pheromone is usually a complex steroid molecule with
     sulfur radicals and many double bonds.

 6.  Odors are the only communication signals that are effective
     around corners.

 7.  Queen substance inhibits ovarian development in worker bees.

Multiple Choice:

 8.  A firefly would most likely be classified as a ________ insect.
     A.  Crepusular                  C.  Eusocial
     B.  Diurnal                     D.  Solitary

 9.  Female pseudergates may molt into determinant nymphs whenever:
     A.  Soldier pheromone is too high
     B.  Queen substance is too high
     C.  King substance is too high
     D.  None of these

10.  All insects must communicate in order to:
     A.  Find a mate                 C.  Survive the winter
     B.  Locate food                 D.  Avoid predation

11.  Any chemical used to repel predators would always be
     classified as a(n):
     A.  Pheromone                   C.  Hormone
     B.  Kairomone                   D.  Allomone

12.  Insects that share a common nest site but do not care for their
     young are said to be:
     A.  Quasisocial                 C.  Semisocial
     B.  Communal                    D.  Solitary

13.  Stridulation is a method of producing sound by:
     A.  Vibrating the wings
     B.  Vibrating a resonant membrane
     C.  Striking the substrate
     D.  Rubbing body parts together

14.  Which event might initiate nocturnal behavior in an insect
     whose activity cycle is under exogenous control?
     A.  Sunrise                     C.  Solar eclipse
     B.  Rainfall                    D.  None of these

15.  Which communication signal has low information content, but
     can be long-lasting in the environment?
     A.  Wing color patterns         C.  Light flashes
     B.  Stridulation                D.  Marking pheromones


Which group of insects fits statements 16-20?
     A.  Only termites             D.  Only bees and wasps
     B.  Only ants                 E.  All eusocial Hymenoptera
     C.  All eusocial insects      F.  None of these

16.  All workers are female.

17.  A colony is NOT able to replace its queen.

18.  Immatures serve as workers in the colony.

19.  There is overlap of adult generations.

20.  Males are produced by parthenogenesis.

Use the following key to indicate which type of chemical signal is
described in questions 21-25.
          A.  Allomone          C.  Hormone
          B.  Pheromone         D.  Kairomone

21.  Females of some parasitic wasps exhibit "calling behavior" 
     while still within the cocoon.  They are expectantly greeted
     by males as soon as they eclose.

22.  Chemicals released by "threatened" aphids elicit defensive
     behavior among the ants that tend these aphids.

23.  Substances in the frass of bark beetles attract predators and
     parasites to the trees infested with these beetles.

24.  Flowers of skunk cabbage have a repugnant odor that attracts 
     flies and carrion beetles.  These insects unwittingly pollinate
     the flowers while crawling over them in search of food.

25.  An aphid that has produced several asexual generations may
     suddenly produce a sexual generation when the nutritional
     quality of her host plant starts to decline.

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