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Book2Chap2Lesson3
Vocab
Question | Answer |
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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 least 2 meters of rain per year, mostly occurring in the tropical wet climate zone. |
emergent layer | The tallest layer of the rain forest that receives the most sunlight. |
canopy | A leafy roof formed by tall trees in a rain forest. |
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. |