Hey guys just wanted to say I know I am posting alot of these but I almost lost my best friend 2 days ago and I want to help people if I can. So, if your thinking about self harming or committing please talk to me or someone so that I can help you as much as I can :(

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.