Which scientist proposed the theory of continuity of germplasm?

When Darwin spoke of the struggle for existence and survival of the fittest in nature,he was convinced that

Genetic drift is observed only in which of the following?

Which of the following is the most accurate reason for the development of resistance to pesticides in insect populations that damage crops?

Hugo de Vries discarded the principle of which of the following scientists while proposing his mutation theory?

Saltation refers to . . . . . . .