In cartilaginous fishes,the dermis contains bone in the form of small placoid scales called
A)teeth.
B)scales.
C)growth lines.
D)the lateral line system.
E)denticles.

Question

Quizplus · Accepted Answer

Cartilaginous fishes have unique scales called denticles that are made of dentin and enamel, similar to teeth. These denticles provide protection and streamlined movement through the water.

In Cartilaginous Fishes,the Dermis Contains Bone in the Form of Small