JAMB Biology 2012 Question 33

Question 33

Population Ecology

The most likely first colonizers of a bare rock are

  1. A.mosses
  2. B.ferns
  3. C.lichen
  4. D.fungi.
Show the answer and explanation

Answer: C (lichen)

Explanation

Lichens can grow on bare rock with no soil; they slowly break the rock down and start soil formation, so they are the pioneer colonizers.