Distinguish between cartilaginous fish and bony fish.

Connecting link between cartilaginous and bony fishes is

Cartilaginous fishes are

Shark is a bony fish.

List three differeces between cartilage fishes and bony fishes

Cartilaginous fishes do not have

Tabulate four differences between cartilage and bony fishes.

Write about cartilaginous fishes.

A cartilaginous fish with an operculum is

What are differences between the following : (a) Cartilaginous fishes and bony fishes , (b) Amphibia and Reptilia , (c) Aves and mammals.