Question

Name of the organ which help to swim in water fish

Answer 1

The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled organ that contributes to the ability of many bony fish (but not cartilaginous fish)to control their buoyancy, and thus to stay at their current water depth without having to waste energy in swimming.Also, the dorsal position of the swim bladder means the center of mass is below the center of volume, allowing it to act as a stabilizing agent. Additionally, the swim bladder functions as a resonating chamber, to produce or receive sound.

The swim bladder is evolutionarily homologousto the lungs. Charles Darwin remarked upon this in On the Origin of Species.Darwin reasoned that the lung in air-breathing vertebrates had derived from a more primitive swim bladder, but scientists now believe that the swim bladder derived from a more primitive lung.[citation needed]

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Answer 2

Answer : Swim bladder and Fins help the fish to swim

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