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Chapter 2 Lesson 3

science

TermDefinition
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 reign that on average receives less than 25 centimeters of precipitation per year
rainforest 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 receive the most sunlight
canopy a leafy roof formed by tall trees in the rainforest
under story a layer of shorter trees and vines the that grow in shade in 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 it's seeds in cones and that has needle shaped leaves coated in a waxy substance to reproduce water loss
tundra an extreme cold, dry biome climate region characteristics by short cool summers and bitterly cold winters
pemafrost permanently frozen solid found in the tundra biome climate region
Created by: lindsaylewiss