Question

Differentiate oviparous and viviparous organisms. Also, give examples.

Answer 1

Oviparous Animals	Viviparous Animals
1. Oviparous animals lay fertilized or unfertilized eggs.	1. Viviparous animals give birth to young ones.
2. The fertilized eggs remain covered by hard calcareous shell and laid in safe place in the environment.	2. The fertilised egg (zygote) develop into a young one inside the body of the female organism.
3. Chances of survival of young ones is less as the female lay egg in the open environment.	3. Chances of survival of young one is more because of proper embryonic care and protection inside the mother’s body.
4. Example : Birds, Reptiles, Amphibian, Pisces, Insects etc.	4. Example : Most of the mammals.