Multiple choice

Whale belongs to which of the following classes?

  1. Reptilia

  2. Mammalia

  3. Aves

  4. Pisces
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 Whale, the largest mammal, lives in water. Mammals are warm-blooded animals with four-chambered hearts. They have mammary glands for the production of milk to nourish their young ones. Their skin has hair as well as sweat and oil glands. 

Keep practicing — related questions