49. Animal Behavior
Animal Behavior
Multiple Choice
Multiple ChoiceA blackcap warbler from a captive migratory population is mated with another blackcap warbler from a captive nonmigratory population. The lab-reared offspring exhibit a modest amount of migratory restlessness. This behavior, which is intermediate between that of the two parents, could be interpreted as evidence for which of the following statements?
A
Migratory behavior is determined exclusively by environmental factors.
B
Birds must learn how to migrate.
C
Migratory behavior cannot evolve by natural selection.
D
None of the listed responses is correct.
E
The differences in migratory behavior among populations are influenced by genetic differences among the populations.
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