Question

Label A, B, C and D in the given figure. Give the function of B.
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Answer 1

A represents the dorsal fin of the fish.

B represents caudal fin of the fish.

C represents ventral fin of the fish.

D represents pelvic fin of the fish.

Caudal fins act as the major locomotory organs in the fishes. These help in the propulsion of fishes through the water. The propulsive force is generated by the tail of the fish.