Question

Which among the following have scales?

(i) Amphibians
(ii) Pisces
(iii) Reptiles
(iv) Mammals

• A. (i) and (iii)
• B. (iii) and (iv)
• C. (ii) and (iii)
• D. (i) and (ii)

Answer 1

The correct option is C (ii) and (iii)

Superclass Pisces is divided into two classes, Chondrichthyes and Osteichthyes. Chondrichthyes have placoid scales and Osteichthyes have cycloid scales. It protects the skin from predators and other injuries. Reptiles have epidermal scales or scutes. In Reptiles, scales are made up of alpha and beta keratin and protects the skin from predators.

Thus, the correct answer is option C.