How many pairs of cranial nerves are found in the Amniota (in $pairs$)?

Bats are included in the same taxonomical group as

Identify the type of mammal shown in the figure based on its mode of reproduction.

Whales are warm-blooded animals that live in cold seas. Which part of their body helps them maintain their body temperature?

Mammals that possess a marsupium (pouch) are called .....

Assertion $(P)$: Mammals are viviparous.
Reason $(Q)$: Mammals possess external pinnae.