WAEC Biology 2007 Question 44

Question 44

Population Ecology

The order of primary succession by plants in a very dry habitat is

  1. A.xerophytes → mesophytes → shrub
  2. B.mesophytes → xerophytes → shrub
  3. C.mesophytes → shrub → xerophytes
  4. D.xerophytes → shrub → mesophytes
Show the answer and explanation

Answer: D (xerophytes → shrub → mesophytes)

Explanation

On dry bare ground, hardy xerophytes come first, then shrubs as soil builds up, and finally mesophytic trees form the climax.