Alligators in wetland regions normally feed on animals such as shorebirds.
Shorebirds usually feed on small fish
and frogs to survive. Recently, scientists
released a large number of alligators

into a wetland region. Scientists expect
that as a result of this increase in the
alligator population, the population of
small fish and frogs will
A. remain about the same.
B. rapidly decrease.
C. become extinct.
D. notably increase.