Which statement would least likely be used to describe variation? Variations are inherited differences between individuals of the same species. Variations that decrease reproductive success are more likely to be passed on. Variations may result in changes to an entire population after many generations. Variations provide some individuals with an advantage.

The question is asking us to choose which statement would least likely be used to describe variation. Variations are small mutations in genes that occur spontaneously and some are advantageous and some are disadvantageous to the organism. The advantageous mutations can over many generations be reinforced: be more and more present and become a permanent trait of that species, so the correct answer is: Variations may result in changes to an entire population after many generations. (C)