Question

what is fertilisation . differentiate between internal and external fertilisation.

Answer 1

The difference between internal and external fertilization is that internal fertilization occurs inside the body, whereas external fertilization happens outside the body. Fertilization is the process by which a sperm cell and an egg cell unite to form a completely new individual.

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Answer 2

the first step in the process of reproduction is fusion of a sperm and an ovum. when sperm may fuse the egg called fertilisation.
Internal fertilisation fertilisation that takes place inside the female body is called internal fertilisation. In internal fertilisation one egg is laid eg. hens
external fertilisation fertilisation that takes place outside the female body is called external fertilisation. in external fertilisation more than 100s of eggs are laid eg. frogs fish ect.
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