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WAEC Biology 1996 Question 33

Question 33

Population Ecology

The frequency of andropogon in a grass lawn is 90 100. Throws were made with 1 meter square quadrat. What is the density of andropogon in the field?

  1. A.0.09 per m2
  2. B.090 per m2
  3. C.9.0 per m2
  4. D.90 per m2
  5. E.900 per m2
Show the answer and explanation

Answer: B (090 per m2)

Explanation

Reading the data as 90 plants found in 100 throws of a 1 m² quadrat, density = 90 ÷ 100 m² = 0.90 per m².