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(a) What is fertilisation? Distinguish between external fertilisation and internal fertilisation. (b) What is the site of fertilisation in human beings?



(a)fertilisation is the fusion of gametes to initiate the development of a new individual organism.The fertilisation that takes place inside the female body is called internal fertilisation.The fertilisation that takes place outside the female body is called external fertilisation.
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The process of fertilising an egg or feemale animal or plant involving fusion of male and female gametes to form a zygote is called fertilisation.external fertilisation is the type of fertilisation in which a sperm cell unites with an egg cell in the open , rather than inside a organwithin the body or parent and internal fertilisation takes place inside the female body after insemination through copulation.
Human fertilization is the union of a humanegg and sperm, usually occurring in the ampulla of the fallopian tube. The result of this union is the production of a zygote cell, or fertilized egg, initiating prenatal development.

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