Which process is most directly associated with the theory of evolution?

A) Populations changing over time
B) Mutations changing the gene pool
C) Production of large numbers of offspring
D) Sexual reproduction producing genetic variation
E) Competition within a population for limited resources

Evolution

The change in the genetic composition of a population over successive generations, often leading to the development of new species.

Gene Pool

All the alleles of all the genes present in a freely interbreeding population.

Populations

A group of individuals of the same species living and interacting in a particular geographic area.