Which of the following BEST describes the spatial pattern of MOST cultural regions? A. They are connected by mass media.
B. They are all connected by a common language called a lingua franca.
C. They are geographically centered on a city.
D. They have firm, easily delineated boundaries.
E. They are relatively homogeneous with regard to one or more traits.

Which ecosystem best fits the characteristics listed below? which ecosystem best fits the characteristics listed below? ii. seasonal migrations of millions of wildebeests, zebras, and elephants iii. large numbers of predators, such as lions iv. acacia trees and grasses a. the congo rainforest b. the african mangroves c. the serengeti grasslands d. the sahel