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WAEC Biology 2005 Question 43

Question 43

Population Ecology

The density-dependent factors that operate to regulate a population size may include the following except

  1. A.shortage of food supply
  2. B.fire outbreak
  3. C.spread of diseases
  4. D.increased competition
Show the answer and explanation

Answer: B (fire outbreak)

Explanation

A fire kills organisms whether the population is crowded or not, so it is density-independent; food, disease and competition get worse as density rises.