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30. (a) Explain the term 'fertilisation'b) Give some examples of different modes of fertilisation in nature(0) What type of fertilisation takes place in (i) fish, and (in) birds?

Answer»

Fertilization:The process of combining the male gamete, or sperm, with the female gamete, or ovum. The product offertilizationis a cell called a zygote.

a) The fusion of male and female gamete to form zygote during sexual reproduction is called fertilisation. (b) Internal and external fertilisation. (c)(i) External fertilisation. (ii) Internal fertilisation



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