What are viviparous and oviparous animals?
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What are viviparous and oviparous animals?
please for 2 marks
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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:
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.