Fact 1: Mutation creates new genetic variation in a gene pool. Fact 2: Genetic variation is the basis for natural selection. Given the two facts above, what is the basis for natural selection?
OPT:
[a]. hydrogen;
[b]. root growth;
[c]. weathering;
[d]. animals;
[e]. artificial intelligence;
[f]. mutation;
[g]. trees;
[h]. competition;
Answer:
[f].