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WAEC Biology 2017 Objective — Question 44

Question 44 of 50 from the West African Examinations Council (WAEC) Biology 2017 Objective paper, with the correct answer and a full explanation.

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Which of the following characters is not a morphological variation?

  • A. A. shape of the nose
  • B. B. colour of skin
  • C. C. colour of hair
  • D. D. tongue rollingCorrect

Explanation

Morphological variation deals with forms and structures while physiological variation deals with how the body functions. The ability to roll the tongue is a physiological variation.

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