Answer:
Besides temperature, the main factor that is important in determining the types of living things found in a region is "plant life" (option B). The type of vegetation present in a region can have a significant impact on the types of animals that live there, as well as the microorganisms and fungi that are present. For example, desert regions typically have sparse vegetation and are home to animals and plants that have adapted to conserve water, while rainforests have a dense canopy that supports a wide variety of animals and plants adapted to the warm, humid environment. The other options (elevation, prevailing winds, amount of rainfall) can also play a role in determining the types of organisms found in a region, but they are not as important as plant life.