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JAMB Biology 2016 Question 15

Question 15

Population Ecology

Use the graph of population size of a given species against temperature to answer: The zone of physiological stress is represented by

Diagram for this question
  1. A.I and II
  2. B.II only
  3. C.II and III
  4. D.I and III.
Show the answer and explanation

Answer: D (I and III.)

Explanation

Zones I and III are the temperature extremes where only a few individuals survive, so the organisms there are under physiological stress. Zone II is the optimum range.