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Question : Give scientific reasons for the following statements: Variation is necessary for the maintenance of existence of any species.

Answer»

Solution :Specific species or its POPULATION live in the PARTICULAR environment or HABITAT which is suitable to them.
`rarr` There are changes taking place on earth e.g., fluctuation in temperature, variation in the water level, etc.
`rarr` Organisms possesing variations get a CHANCE to survive in the changing environment.
`rarr` Due to variation, organisms can adapt to the environment and hence they can EXIST through adaptations.
`rarr` With the help of variation geographical distribution of organisms increase.
Hence, variation is necessary for the maintenance of existence of any species.


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