| Term | Definition |
| Tundra | Small plants, no big trees because roots can't go through soil; there's permafrost underneath. in the arctic; long and cold winters |
| Temperate Broadleaf Forest | in northern hemisphere (VA), cold winters and hot/humid summers, diverse and vertical layers, deciduous trees, drop leaves in winters when low temp. would reduce photosynthesis. |
| Temperate Grassland | N. America, Asia mostly, cold winters and hot summers, Grasses ,adapted to droughts and fire, so grasses sprout quickly after fire. |
| Coniferous Forest (taiga) | Right below tundra, largest biome, very long winters but very hot summers, cone-bearing trees to prevent too muchsnow from accumulating and braking their branches |
| Tropical Forest | Equatorial and sub-equatorial (S. America, Africa, and India), always warm, competition for light , broadleaf evergreen trees, |
| Desert | 30 degrees north and south latitude, temp. b/w -30 to 50 degrees C ; low widely scattered plants, lots of bare ground, plants adapted to store water and reduce leaf surface area |
| Savanna | (Sub)Equatorial regions, always warm, scattered trees that are thorny with reduced leaf surface area and are tolerant to fires and droughts which happen a lot |
| Chaparral | located on the coasts of some continents, very hot 3/4 of year, has shrubs and small trees and many grasses and herbs, less loss of water, and adapted to fires, |