When a population. is declining, what two factors are likely outpacing what
other two factors?

Energy derived from hot rocks and fluids beneath the earth’s surface is

Apart of an ecosystem that can restrict the growth of a population is referred to as

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.