(a)Male and Female reproductive organ:
The male reproductive organs include a pair of testes (singular, testis), two sperm ducts and a penis. The testes produce the male gametes called sperms.
The female reproductive organs are a pair of ovaries, oviducts (fallopian tubes) and the uterus. Ovary produces female gametes called ova (eggs).
(b)Asexual production: It is a type of production in which only one parent is involved. Example of asexual production can be find in Hydra. In hydra, new individual develop as outgrowths from a single parent.
(c)Binary fission: Binary fission is a kind of asexual production in which an animal reproduces by dividing into two individuals. This kind of reproduction is find in amoeba.
(d)Fertilisation: The fusion of the egg and the sperm is called fertilisation. It is one of the initial process of reproduction. There are two types of fertilisation i.e. internal and external fertilisation.
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