Exam 23: Terrestrial Ecosystems

Distribution patterns of biomes can be determined based almost entirely on

Which biome is represented by the map and climate diagrams?

Tundra occurs at high elevations on mountains.

Grasslands formerly covered 42 percent of the land surface of the Earth.

The vegetation formation dominated by needle-leaf evergreen trees and occurring where growth is restricted to a few months of the year due to low temperatures is referred to as

Tundra occurs only at high latitudes in polar regions.

The density of woody vegetation in a savanna is controlled through

Large grazing ungulates and burrowing animals are most abundant in