48. Ecology
Introduction to Ecology
Multiple Choice
Multiple ChoiceWhich choice below describes a feature of grassland that explains why its remnants are concentrated in arid regions of North America and central Asia?
A
Grassland is often consumed by fire.
B
Large grazers, such as bison and wild horses, have depleted grassland.
C
Woody shrubs and trees have taken over in areas that receive more precipitation.
D
Grassland has been found to be a good source of minerals and oil.
E
The soil is fertile, and most grassland has been converted to farmland.
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