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JAMB Biology 1999 Question 39

Question 39

Ecological Associations

The sign + is used to indicate an association where an organism gains, while 0 is used where an organism is unaffected. An association indicated as + 0 is known as

  1. A.predation
  2. B.commensalism
  3. C.parasitism
  4. D.competition.
Show the answer and explanation

Answer: B (commensalism)

Explanation

In commensalism one partner benefits (+) and the other is neither helped nor harmed (0).