Question

Hens and frogs are both oviparous exhibiting different types of
fertilisation. Explain.


NCERT Class VIII
Science - Exemplar Problems

Chapter 9. Reproduction in Animals

Answer 1

Both the animals produce eggs but the main difference lies, where they fertilisation occurs, the fertilisation of eggs is in the water i.e. outside their body whereas the fertilisation of hen's egg is occurs inside the body that is hens egg has a hard shell whereas the egg of a frog is like soft jelly.

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Answer 2

Answer:

Hens are oviparous in which internal fertilisation takes place. The fertilised egg develops into an embryo inside the body. ... Frogs are oviparous in which both fertilisation and development of zygote to embryo and young ones occurs outside the body.