Q3. The class of vertebrates that whales belong to is _________.
1 birds 2 mammals 3 amphibians 4 reptiles
Q4. Jacob was classifying animals into categories. There was a heading 'Female animals producing their own liquid milk', Which among the following animals should he put under that heading?
P: Egg laying animals
Q: Animals that give birth to young ones
1 only P
2 only Q
3 both P and Q
4 (All animals feed their young with chewed food and do not produce milk)