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JAMB Biology 2008 Question 35

Question 35

Population Ecology

Use the graph to answer: If species I, II and III interact in a community, which of the following statements is true?

Diagram for this question
  1. A.The population of species II is growing at a slow rate
  2. B.The population of species III has reached its carrying capacity
  3. C.The population of species I has become extinct
  4. D.The population of species I is always higher than species II.
Show the answer and explanation

Answer: C (The population of species I has become extinct)

Explanation

The curve for species I rises, then falls to zero at about day 48, so that species has died out. Species II rises steadily and species III is still changing.