what is fertilization
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The fusion of sperm with an egg to form zygote
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⚫Fertilization is usually known as the fusion of male gamete and female gamete to form a zygote.
⚫Here, the male gametes is sperm and female gamete is ovum.
⚫There are two types of fertilisation:- External fertilisation and Internal fertilisation.
⚫External fertilization takes place outside the body of female and internal fertilization takes place inside the body of female.
⚫During fertilization, the head of the sperm fertilize with ovum with its head first.
⚫Only one sperm reacts with ovum among millions of other sperms.
⚫The next stage of zygote is embryo.
⚫After being embryo, the body parts start developing and an organism is formed.
Explanation:
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