Salmon belongs to the group of

Which of the following is an example of a bony fish (Osteichthyes)?

Bony plates and scutes are found in addition to scales in

The air bladder in a fish helps in:

Fishes having a swim bladder,which does not have direct communication with the exterior and where the resorbent and secretory parts are not sharply separated from one another,are called:

The fish famous for parental care is