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viva [34]
3 years ago
10

Do all fishes have swim bladder? Justify your answer? Give a small answer please

Biology
2 answers:
Rus_ich [418]3 years ago
7 0

Lol I never thought swim bladder actually exists.

Well fishes that have bones contain swim bladder , while cartilegenious fish do not contain swim bladder. It is basically an organ fillled with gas allowing fish  to control their buoyancy, and thus to stay at their current water depth without having to waste energy in swimming. So only bony fish have swim bladder while cartilegenious fish do not.

muminat3 years ago
6 0

Answer:

Explanation:

Most fish rise and sink using this method, but not all do. Some species don't need a swim bladder because they spend all their life skimming along the ocean floor. Other fish, such as rays and sharks, ascend and descend by propelling themselves forward.

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