How do consumers get the carbon that we need?

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

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.

40. invasive species -. (2 points) olive in the area the species have always lived o naturally moved into a new area are brought to a new area by human activities do not affect the ecosystem of an area