Question

Define air bladder for class 11th​

Answer 1

Answer:

Gas bladder or air bladder is a gas filled sac present in fishes.

It helps in maintaining buoyancy. Thus, it helps fishes to ascend or descend and stay in the water current.

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Answer 2

Air bladder :

➡ The structure that prevents the Bony fishes from sinking is called air bladder.

➡ It helps to control their buoyancy,

to stay at their current water depth without having to waste energy in swimming.