| A | B |
|---|
| biome | major type of terrestrial ecosystem that covers a large region of Earth |
| tropical rain forest | type of forest near the equator that receives as much as 250cm of rainfall yearly |
| savanna | grassland with scattered tress; found in tropical regions of Africa, Australia and South America |
| desert | land area that receives less than 30 cm of rain per year |
| chaparral | temperate coastal biome dominated by dense everygreen shrubs |
| temperate grassland | biome characterized by deep, nutrient-rich soil that supports many grass species |
| temperate deciduous forest | forest in a temperate region characterized by trees that drop their leaves annually |
| coniferous forest | forest populated by cone-bearing evergreen trees; mostly found in northern latitudes |
| tundra | biome in the Arctic Circle or on high mountaintops, characterized by bitterly cold temperatures and high winds |
| permafrost | permanently frozen subsoil |
