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natural selections need in order to take place.
answer
absence of diversity
competition
cloning
a stable environment
individuals with favorable traits are in an environment.
answer
less successful
always more common
unable to compete
more successful

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.