click below
click below
Normal Size Small Size show me how
Chapter 2 Lesson 3
Definitions from the Interactive Textbook: Ecology and the Environment
Question | Answer |
---|---|
Biome | A group of ecosystems with similar climates and organisms |
Climate | The average annual conditions of temperature, precipitation, winds, and clouds in an area. |
Desert | A dry region that on average receives less than 25 centimeters of precipitation per year. |
Rain forest | A forest that receives at 2 meters of rain per year, mostly occurring in the tropical wet climate zone. |
Emergent layer | The tallest layer of the rainforest that receives the most sunlight. |
Canopy | A leafy root formed by tall trees in a rainforest. |
Understory | A layer of shorter trees and vines that grows in the shade of a forest canopy. |
Grassland | An area populated mostly by grasses and other non-woody plants that gets 25 to 75 centimeters of rain each year. |
Savanna | A grassland located close to the equator that may include shrubs and small trees and receives as much as 120 centimeters of rain per year. |
Deciduous tree | A tree that sheds its leaves during a particular season and grows new ones each year. |
Boreal forest | Dense forest of evergreens located in the upper regions of the Northern Hemisphere. |
Coniferous tree | A tree that produces its seeds in cones and that has needle-shaped leaves coated in a waxy substance to reduce water loss. |
Tundra | An extremely cold, dry biome climate region characterized by short, cool summers and bitterly cold winters. |
Permafrost | Permanently frozen soil found in the tundra biome climate region. |