An equinox has the property of a.24 hours of darkness at the equator b.12 hours of daylight and 12 hours of night at all latitudes c. the vertical rays of the sun at the tropic of cancer d. total darkness north of the arctic circle e. the sun at the same angle at all latitudes

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