Which of the following is a density-dependent factor limiting population growth?
Aa sudden flood
Ba volcanic eruption
Ccompetition for foodCORRECT
Dan unusually cold season
JUPEBBiologyEcology and Conservation
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Why the answer is C, and why the others tempt you.
Density-dependent factors have a greater effect as the population becomes more crowded; competition, predation and disease all intensify with density. Floods, weather extremes and eruptions affect populations regardless of their size and are density-independent.
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