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Class Osteichthyes

Teleost fishe...

Question

Teleost fishes are characterized by the presence of

A

Air bladder

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B

Claspers

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C

Placoid scales

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D

None of the above

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Solution

The correct option is A Air bladder
Teleosts are member of the large and extremely diverse group of bony fishes. Swim bladder or air bladder is found only in bony fishes. It is a sac-like outgrowth from the dorsal wall of the oesophagus. It is hydrostatic in function and in some cases respiration as well. Hence, option A is correct.

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