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Question

The structure/s which helps a fish to maintain its body balance is/are_______.


A
Fins
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B

Spine

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C

Gills

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D

Scales

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Solution

The correct option is D

Fins


Fins present in the body of a fish helps to maintain body balance. It also helps to change the direction while swimming. Five types of fins are present on a fish - dorsal fin, Pelvic fin, pectoral fins, anal fin and caudal fin.

A gill is a respiratory organ found in most aquatic organisms that extract dissolved oxygen from water and gives out carbon dioxide.

Scales protect the skin from attacks by predators, parasites and other injuries.The primary structural framework upon which the fish's body is built is the spine.


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