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JAMB Biology 2007 Question 5

Question 5

Adaptation

One adaptation shown by hydrophytes in freshwater habitats is the

  1. A.leaves reduced to spines
  2. B.poor development of roots and xylem tissues
  3. C.waxy cuticle on shoot surface
  4. D.well-developed roots and supporting system.
Show the answer and explanation

Answer: B (poor development of roots and xylem tissues)

Explanation

Water plants are surrounded by water and held up by it, so they need little root, xylem or support tissue. Spines and waxy cuticles are features of dry-land plants.