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JAMB Biology 2004 Question 39

Question 39

Population Ecology

The scarcity of food causes a sudden decrease in population size by

  1. A.decreasing the reproductive rate
  2. B.bringing about immigration
  3. C.raising the mortality rate
  4. D.minimizing the rate of competition
Show the answer and explanation

Answer: C (raising the mortality rate)

Explanation

When food runs short, many organisms starve and die. A higher death rate quickly reduces the population.