Assertion:Mammalian teeth are heterodont.
Reason: Mammalian teeth are embedded in a socket of jaw.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Answer

b

Explanation

In class Mammalia, teeth are of different types (heterdont) and are embedded in the socket of jaw (thecodont). These are developed twice during the life time of the animal (diphyodont), i.e., milk and permanent teeth.