Propose a condition or parameter of the simulation that could explain the trends in the populations of red, tan, and brown beetles. Did the condition stay the same throughout the simulation, or did it change? Explain your answer.

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.