Answer to Question 1
D
Answer to Question 2
The three bioregions are tropical rainforests, tropical seasonal forests, and tropical savanna, which correspond primarily with a matter of precipitation. Although all three regions are located within the tropics, and all have fairly high and constant temperatures, they differ in the seasonality and amount of precipitation. Tropical rainforests receive abundant rainfall year round; tropical seasonal bioregions have a distinct dry season; and tropical savannas received considerably less rainfall.