Question

cartilaginous fishes should swim constantly to avoid sinking and like Bony fish​

Answer 1

Answer:

Bony fishes have Air Bladder which prevents sinking.

Cartilaginous fishes have cartilaginous skeleton but don't have Air Bladder hence they should swim constantly to avoid sinking.

Answer 2

Hey!

✔ Cartilaginous fishes should swim constantly without sinking because they don't have air bladder and whereas present in bony fishes which helps in buoyancy

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