Ans - Natural Selection Takes Place in Four Alternative Ways as Follows:- Variation – The changes accumulated over a period of time in an organism usually gives rise to a new species.Inheritance – It is the passing on of the variations over generations which ultimately leads to speciation.A High Rate of Growth of Population – This gives rise to more number of organisms being reproduced by a species than the environment can support which might lead to the extinction of that particular species.Differential Survival and Reproduction – The superior variations cause survival of a specific organism and therefore the inferior or negative variation results in extinction. The superior variations are those inherited during reproduction.