Question

Which of the following is not a mammal?
A. Shark B. Dolphin C. Blue Whale D. Bat

Answer 1

Answer:

Sharks are not mammals

Answer 2

Answer:

A. Shark is not a mammal.

Explanation:

What are mammals ?

Mammals include human beings and animals like horse, cow etc. which directly give birth to babies and does not lay eggs. (Exception - platypus)

• Mammals are a group of vertebrates (i.e. they posses a backbone).

• They are warm - blooded.

Dolphin is a mammal. They do not lay eggs.

Blue whale is the largest mammal in the planet Earth.

Bat is the only flying mammal.

Whereas a shark falls under the species of fish. But unlike most of the fish, its spine is made up of cartilage.