Question

Natural selection is the process by which animals with characteristics suited for their environment survive and reproduce. Over time this results in organisms that have adaptations that enable the species to survive. What is needed for natural selection to occur?SC.F.2.3.3

F.continental drift
G.genetic disorder
H.geographic isolation
I.variation

Answer 1

Answer: I. Variation

Explanation: Genetic variation is the raw material on which natural selections acts, because natural selection increases or decreases the frequency of alleles in a population.