Question

What is oviparous and viviparous animals define with example

Answer 1

Answer:

The animals which can give birth to their young ones indirectly are called oviparous. They lay eggs. Example-Duck, hen, etc. The animals which can give birth to their young ones directly are called viviparous. They donot lay eggs.

Answer 2

EXPLANATION,

In the animal kingdom, mammals produce offspring with fertilization in which the fusion of male and female gamete takes place resulting in the formation of an embryo. Fertilization can be of two types external and internal.

OVIPAROUS ANIMALS:

Animals that lay eggs are called oviparous animals. In oviparous the fertilization takes place internally but the growth and development of the embryo occurs outside i.e externally.

EXAMPLE: All birds lay eggs, frogs which are amphibians lay egg, almost all fishes are oviparous.

VIVIPAROUS ANIMALS:

Animals that give birth to young ones are called viviparous animals. Here the development of the embryo takes place inside the female body i.e internally. Upon completion of fetal development, the mother delivers the baby.

EXAMPLE:

All mammals - human beings, cats, dogs, horses, cows, etc EXCEPT ECHIDNA AND PLATYPUS are egg-laying mammals.