2. It can be inferred from the text that the author considers the dichotomy discussed to be
[A] applicable only to erratically fluctuating populations.
[B] instrumental, but only if its limitations are recognized.
[C] dangerously misleading in most circumstances.
[D] a complete and sufficient way to account for observed phenomena.
3. According to the text, all of the following behaviors have been exhibited by different populations EXCEPT
[A] roughly constant population levels from year to year.
[B] regular cycles of increases and decreases in numbers.
[C] erratic increases in numbers correlated with the weather.
[D] unchecked increases in numbers over many generations.
4. The discussion concerning population in the third paragraph serves primarily to
[A] demonstrate the difficulties ecologists face in studying density-dependent factors limiting population growth.
[B] advocate more rigorous study of density-dependent factors in population growth.
[C] prove that the death rates of any population are never entirely density-independent.
[D] underline the importance of even small density-dependent factors in regulating long-term population densities.
5. In the text, the author does all of the following EXCEPT
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