The most sustainable method for limiting human population growth is ____
a. decreasing birth rate
b. increasing carrying capacity
c. decreasing competition
d. increasing death rate
e. exploiting outer space
ANSWER: a
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What will be an ideal response?
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An earthquake hits a small island. All but a few individuals of a lizard species are eliminated in this catastrophe, and an allele is lost from the population. This is an instance of __________.
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