European Russia is separated from Asiatic Russia by the 1.West Siberian Plain
2.Ural Mountains
3.Caucasus Mountains
4.Caspian Sea

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