The life that exists on Earth today likely arose from a single common ancestor. Judge each statement below and select the ones that explain how natural selection has played a role in the diversity of life on Earth from that single ancestor. Select all that may apply. The life that exists on Earth today likely arose from a single common ancestor. Judge each statement below and select the ones that explain how natural selection has played a role in the diversity of life on Earth from that single ancestor. Select all that may apply.

A) Natural selection acted on phenotypes that were the result of new mutations in a population.
B) Natural selection reduced the species numbers on a global scale since individual organisms did not mutate quickly enough.
C) Natural selection maintained the fitness of populations on a global scale, which maintained species numbers at a constant level.
D) Natural selection acted on isolated populations separately, allowing for those populations to diverge over time, allowing for speciation.
E) Natural selection increased the fitness of certain populations as traits that were considered adaptations became more prevalent in the population.