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JAMB Biology 2012 Question 30

Question 30

Habitats and Biomes

Organisms living in an estuarine habitat are adapted to

  1. A.withstand wide fluctuations in temperature
  2. B.survive only in water with low salinity
  3. C.withstand wide fluctuations in salinity
  4. D.feed only on phytoplankton and dead organic matter.
Show the answer and explanation

Answer: C (withstand wide fluctuations in salinity)

Explanation

An estuary is where river (fresh) water meets sea water, so the salt content changes with the tides; its organisms must tolerate large changes in salinity.