CHP.-1.REPRODUCION IN ORGANISMS. CLASS- XII. Life span – The period from birth to natural death of an organism. Reproduction – a biological process in which an organism gives rise to young ones similar to itself. Types of reproduction –
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(ii) Gamete transfer
(i) Zygote (ii) Embryogenesis
(Mitosis) & cell differentiation.
Oviparous animals–lay eggs Eg. Reptiles, birds.
Viviparous animals- zygote develop into a young one inside the body of female organism.