What is variation?what is its importance?
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the changes occurs at the time of foetal stage
this is important in the formation of new species
this is important in the formation of new species
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varation⇒it means difference which bring the difference between parent and
youngonce and also between twins.this is the reason two individuals are not exictly same
youngonce and also between twins.this is the reason two individuals are not exictly same
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