The northern spotted owl has large eyes to it hunt in dark conditions. its feathers are brown and white to blend in with the surrounding trees. in which biome would you most likely find this bird?

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.