defin fertilization
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fertilization is termed as the fusion between the male and female gamete that results in the formation of a single - celled structure called the zygote.
Answer:
⚫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.
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