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The species is a group of organisms that can interbreed among themselves. The formation of new species from pre existing one is called speciation.Process involved in it are:- 1)Genetic variations 2)Natural selection 3)Recombination 4)Geographical isolation 5)Genetic drift All these lead to the formation of new species
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1 natural selection
2 genetic drift
3 variation is most important
4 changing of niche
5 evolution
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