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JAMB Biology 1985 Question 41

Question 41

Ecological Associations

A relationship between living organisms which is of mutual benefit is

  1. A.parasitism
  2. B.saprophytism
  3. C.ecosystem
  4. D.symbiosis
  5. E.commensalism.
Show the answer and explanation

Answer: D (symbiosis)

Explanation

In symbiosis (mutualism) both partners gain, e.g. legumes and their nitrogen-fixing bacteria. In commensalism only one gains.