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How does the creation of variations in a...

How does the creation of variations in a species promote survival ?

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The creation of variations in a species is either due to inaccuracies in DNA copying or during sexual reproduction.
`rarr` Depending on the nature of variations, different individuals have different kinds of advantages.
`rarr` The individuals with useful variations can adapt to the prevailing environment and show better survival.
`rarr` The individuals with useful variations then increase in numbers.
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