Question

What are viviparous and oviparous animals?
please for 2 marks ​

Answer 1

Explanation:

oviparous

These entities are egg-laying

Internal fertilization observed, but the development of the embryo is through external means

Hard shells of eggs render protection, once foetus matures, egg hatches

This feature of egg-laying animals is referred to as oviparity

Example – Birds, frogs, all fishes. Except for some snake species all other reptiles are oviparous, platypus and Echidna are egg-laying mammals.

viviparous

Animals giving birth to offspring are known as viviparous animals

Development of the embryo and fertilization both occurs inside the female body

Matrotrophy is observed

Example – Dogs, cat, humans etc

Answer 2

Answer:

VIVIPAROUS ANIMALS:- Viviparous animals are those in which fertilization and embryo development occur inside the individual. Humans are viviparous. Mammals such as cows, monkeys, chimpanzees are viviparous.

OVIPAROUS ANIMALS:- Animals that reproduce by laying eggs are called oviparous animals. In these animals, the process of both fertilization and embryo development does not occur inside the mother. Birds and frogs are examples of oviparous animals.