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JAMB Biology 1992 Question 6

Question 6

Ecosystem and Ecological Factors

The flowering period of plants in a habitat is determined by the

  1. A.duration of sunlight
  2. B.intensity and duration of rainfall
  3. C.relative humidity of the atmosphere
  4. D.temperature of the habitat.
Show the answer and explanation

Answer: A (duration of sunlight)

Explanation

Many plants flower in response to day length (photoperiodism), so the duration of sunlight controls when they flower.