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JAMB Biology 1978 Question 27

Question 27

Support and Movement

Figure 2 shows the externals of a bony fish.
During the movement of the fish from point A to target B, one of these parts is not involved

Diagram for this question
  1. A.7
  2. B.5
  3. C.3
  4. D.6
  5. E.10
Show the answer and explanation

Answer: E (10)

Explanation

The fins (such as the dorsal fin, 6, and the tail region, 7) drive and steer the fish, and the eye (3) and lateral line (5) guide it to the target. Part 10, the scales, only cover and protect the body, so they are not involved.