passwella.
Menu

WAEC Biology 2003 Question 50

Question 50

Variation

Which of the following is an example of continuous variation?

  1. A.Human blood groups
  2. B.Sex differences in humans
  3. C.Haemoglobin types
  4. D.Height in humans
Show the answer and explanation

Answer: D (Height in humans)

Explanation

Height shows a smooth range of values between short and tall. Blood groups, sex and haemoglobin types fall into distinct groups.