First slide

Classification of Animals

Question

Which of the following is a marine fish with an air bladder?

Moderate

A

Dogfish
B

Rohu
C

Hagfish
D

Flying fish

Solution

Flying fish is the marine fish with the air bladder. It belongs to Osteicthyes.
Although Rohu is a bony fish too, it is not marine (it is a freshwater fish).
Hag fish is a cyclostome without air bladder.
Dog fish is without air bladder as it is a cartilaginous fish.

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