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WAEC Biology 2005 Question 50

Question 50

Variation

Which of the following is an example of physiological variation?

  1. A.Blood groups
  2. B.Skin colour
  3. C.Finger prints
  4. D.Human height
Show the answer and explanation

Answer: A (Blood groups)

Explanation

Blood groups depend on chemicals in the blood, an inner body feature; skin colour, fingerprints and height are visible (morphological) variations.