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WAEC Biology 1994 Question 48

Question 48

Variation

Which of the following is not a continuous variation?

  1. A.Height of plants
  2. B.Skin colour
  3. C.Ability to roll tongue
  4. D.Length of fingers
  5. E.Leaf size
Show the answer and explanation

Answer: C (Ability to roll tongue)

Explanation

You can either roll your tongue or not; there are no in-between values, so it is discontinuous.