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BIOLOGY

JAMB 2008 - Question 10

Biology 2008 JAMB Past Questions - Question 10: Which of the following is used mainly for balancing in fish?

Choose the most appropriate option for the gap .

Which of the following is used mainly for balancing in fish?

A: The caudal fin

B: The pectoral fin

C: The anal fin

D: The dorsal fin

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Correct Answer

Explanation

The pectoral and pelvic fins are used mostly for steering and balancing and so help the fish to change it's direction of movement. The dorsal and anal fins prevent the body from rolling sideways while the, caudal, fin acts as a rudder used for controlling the direction of the fish.