The systematic oppression of one or more socially defined "races" by another socially defined "race" that is justified in terms of the supposedly inherent biological superiority of the rulers and the supposed inherent biological inferiority of those they rule is >

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.