Question

Which of the following points is correct?

	Oviparous		Viviparous
1.	They lay eggs.	1	Give birth to young ones directly.
2.	Chances of survival of young ones are less.	2	Chances of survival of young ones are more.
3.	E.g. Whale and dolphins	3	E.g. Birds and frog

• A. 1, 3
• B. 2, 3
• C. 1, 2
• D. All of above

Answer 1

Answer: (C)

1, 2

1 and 2 are the correct distinguishing points between oviparous and viviparous animals. Oviparous animals lay eggs and in oviparous animals, chances of survival of young ones are less as the females lay eggs in the open environment. Viviparous animals give birth to young ones and the chances of survival of young ones are more because the embryo grows inside the mother's womb, so the protection is more.

3 is not correct because whales and dolphins are viviparous animals while frogs and birds are oviparous animals.

So, the correct answer is option C.