Question

What do you mean by internal fertilisation and external fertilization

Answer 1

External fertilization is a male organism's sperm fertilizing a female organism's egg outside of the female's body. Internal fertilization, on the other hand, is the occurrence of internalinsemination as the mode of combining sperm and egg.The release of eggs and sperm into the water is known as spawning.
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Answer 2

internal fertilisation:- the mating of ovum and sperm in the body cavity,is called internal fertilisation.
ex - human.
external fertilisation :- fertilisation occurs in the outside of body cavity , know as external fertilisation.
ex:- in frog.
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