WAEC Biology 2000 Question 49

Question 49

Ecological Associations

In commensalism

  1. A.one of the organisms gains and the other loses
  2. B.both organisms benefit from the association
  3. C.one of the organisms gains while the other neither gains nor loses
  4. D.one of the organisms produces extra cellular digestive juices
Show the answer and explanation

Answer: C (one of the organisms gains while the other neither gains nor loses)

Explanation

In commensalism one partner benefits and the other is neither helped nor harmed.