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24. Scientists have found that the existing populations
of a certain species of amphibian are small in
number, lacking in genetic diversity, and
separated from each other by wide areas of dry
land. Which of the following human actions is
most likely to improve the long-term survival of
the amphibians?
(A) Cloning the largest individuals to counteract
the effects of aggressive predation
(B) Reducing the population size by one-fifth to
decrease competition for limited resources
(C) Constructing a dam and irrigation system to
control flooding
(D) Building ponds in the areas of dry land to
promote interbreeding between the
separated populations
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24. Scientists have found that the existing populations
of a certain species of amphibian are small...
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