WAEC Biology 2017 Objective — Question 43

Question 43 of 50 from the West African Examinations Council (WAEC) Biology 2017 Objective paper, with the correct answer and a full explanation.

The type of variation illustrated above is

• A. A. continuous variation
• B. B. discontinuous variationCorrect
• C. C. morphological variation
• D. D. environmental variation

Explanation

The ability to roll one's tongue is a discontinuous variation, as one is only either able to roll the tongue or not; there is no intermediate.

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