Explain how the three major types of grasslands differ in their climate and vegetation. Explain how savanna animals survive seasonal variations in rainfall (Core Case Study). Why is the elephant an...

Explain how the three major types of grasslands differ in their climate and vegetation. Explain how savanna animals survive seasonal variations in rainfall (Core Case Study). Why is the elephant an important component of the African savanna? Why have many of the world’s temperate grasslands disappeared? Describe arctic tundra and define permafrost. What is chaparral and what are the risks of living there?