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JAMB Biology 2001 Question 28

Question 28

Population Ecology

The number of plant species obtained from a population study of a garden is as follows: Guinea grass (15), Ipomea spp (5), Sida spp (7) and Imperata spp (23). What is the percentage of occurrence of Imperata spp?

  1. A.35%
  2. B.16%
  3. C.46%
  4. D.23%.
Show the answer and explanation

Answer: C (46%)

Explanation

Total = 15 + 5 + 7 + 23 = 50 plants. Imperata = 23/50 × 100 = 46%.