Question

25. Variation is useful for the survival of species. true or false
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Answer 1

Your question's answer is True.

Answer 2

Variation is useful for the survival of species overtime but the variants have unequal chances of survival. ... This ensures the survival of the species. But some other organisms (variants) without this variation of heat resistance may not survive due to sudden rise intemperature

# true#

hope this helps you mate!