Question

why is variation not necessary for unicellular organism? (marks -3)

Answer 1

because it has 1 one cell only and there is no label divided because that one cell perform all the activity

Answer 2

Variations are beneficial to the species than individual because sometimes for a species, the environmental conditions change so drastically that their survival becomes difficult. For example, if the temperature of water increases suddenly, then most of the bacteria living in that water would die.