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Buoyancy in a bony fish  is maintained with the help of 

Option: 1

Streamlined body 


Option: 2

Paired fins 


Option: 3

Swim bladder 


Option: 4

All of these 


Answers (1)

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As we have learned 

Class Osteichthyes (bony fishes) -

Includes both marine and fresh water fishes. Air bladder is present which regulate buoyancy. Mouth mostly terminal.

- wherein

Eg. Exocoetus, Hippocampus, Labec, Betta.

 

 

 

Posted by

Rakesh

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