passwella.
Menu

WAEC Biology 2022 Question 43

Question 43

Variation

Which of the following traits in humans is an example of physiological variation?

  1. A.Skin colour
  2. B.Fingerprint
  3. C.Tongue rolling
  4. D.Height
Show the answer and explanation

Answer: C (Tongue rolling)

Explanation

Tongue rolling is an ability (how the body works), while skin colour, fingerprints and height are features of form (morphological).