typically few plants Temperate deserts: Mojave - hot in summer, cool in winter Cold deserts: Gobi - cold winters, warm to hot summers Grasslands: - annual precipitation great enough to allow grass and trees in choice areas to grow Tropical grasslands: belt of high average temperature and low to moderate precipitation occurring on either side of Equator - Savannas - grassland with scattered trees - grazed by large herds of herbivores specialized to minimize competition between groups Temperate grasslands: found in interior regions of continents where winters are cold and harsh and summers hot and dry Tall- and short-grass prairies: N America Pampas: S. America Veldt: southern Africa Steppes: Europe and Asia - wind blows continually and evaporation rapid Polar grasslands - Arctic tundra: areas south of the polar ice cap - bitterly cold throughout most of the year - precipitation mostly in the form of snow - permafrost - subsurface water frozen year-round Forests: - areas in which annual precipitation is great enough to support trees Tropical rain forests: evergreen broadleaf forest found in areas near the Equator - warm annual temperatures, high temperatures, and heavy rainfall almost daily - great diversity of plants and animals - specialized, layered niches Tropical deciduous forests: warm moist areas which receive most of the moisture during a short wet season followed by a long dry season - less complex, drought tolerant evergreens and deciduous forests Tropical scrub forests: warm areas where the dry seasons are even longer, mostly small deciduous trees Temperate rain forests: areas which depend on rainfall and supplemental ocean fog Temperate deciduous forests: areas with moderate average temperatures that change with the seasons - dominated by a few species of broadleaf deciduous trees such as oaks, hickory, maple, poplar, and beech - mature forests have simpler structure than tropical rain forests but still demonstrate layering and high diversity Evergreen coniferous forests (Boreal or taigas): winters are long and dry with short, more moist summer - dominated by waxy conifers - spruce, fir, cedar, hemlock Aquatic Biomes Water covers more than 70% of the earth's surface Serves as a reservoir for carbon dioxide to regulate the greenhouse effect Provides habitat for about 250,000 species of plants and animals Provides a source of iron, sand, gravel, phosphates, magnesium, oil, natural gas, etc. Oceans have two principle life zones, the Coastal Zone and Open Sea Coastal Zone: - relatively warm, nutrient-rich, shallow water that extends from high tide mark on land to the edge of the submerged continental shelf - represents less than 10% of oceans but contains 90% of all 
(annual precipitation; is; great enough to support trees; L:- areas) (winters; are; long and dry with) (carbon dioxide; to regulate; the greenhouse effect) (beech - mature forests; have; simpler structure than tropical rain forests) (relatively warm, nutrient-rich, shallow water; extends; from high tide mark) (Oceans; have; two principle life zones) (beech - mature forests; demonstrate; layering and high diversity Evergreen coniferous forests (Boreal or taigas; T:still) (winters; are; cold and harsh; L:continents) (areas; depend; on rainfall and supplemental ocean fog Temperate deciduous forests) (heavy rainfall almost daily - great diversity of plants and animals - specialized, layered niches Tropical deciduous forests: warm moist areas which receive most of the moisture during a short wet season followed by a long dry season - less complex, drought tolerant evergreens and deciduous forests Tropical scrub forests: warm areas where the dry seasons are even longer, mostly small deciduous trees Temperate rain forests: areas which depend on rainfall and supplemental ocean fog Temperate deciduous forests: areas with moderate average temperatures that change with the seasons - dominated by a few species of broadleaf deciduous trees such as oaks, hickory, maple, poplar, and beech - mature forests have simpler structure than tropical rain forests but still demonstrate layering and high diversity Evergreen coniferous forests (Boreal or taigas): winters are long and dry with short, more moist summer - dominated by waxy conifers - spruce, fir, cedar, hemlock Aquatic Biomes Water covers more than 70% of the earth's surface Serves as a reservoir for carbon dioxide to regulate the greenhouse effect Provides habitat for about 250,000 species of plants and animals; Provides; a source of iron, sand, gravel, phosphates, magnesium, oil, natural gas, etc. Oceans have two principle life zones, the Coastal Zone and Open Sea Coastal Zone: - relatively warm, nutrient-rich, shallow water) Context(heavy rainfall almost daily - great diversity of plants and animals - specialized , layered niches Tropical deciduous forests : warm moist areas which receive most of the moisture during a short wet season followed by a long dry season - less complex , drought tolerant evergreens and deciduous forests Tropical scrub forests : warm areas where the dry seasons are even longer , mostly small deciduous trees Temperate rain forests : areas which depend on rainfall and supplemental ocean fog Temperate deciduous forests : areas with moderate average temperatures that change with the seasons - dominated by a few species of broadleaf deciduous trees such as oaks , hickory , maple , poplar , and beech - mature forests have simpler structure than tropical rain forests but still demonstrate layering and high diversity Evergreen coniferous forests ( Boreal or taigas ) : winters are long and dry with short , more moist summer - dominated by waxy conifers - spruce , fir , cedar , hemlock Aquatic Biomes Water covers more than 70 % of the earth 's surface Serves as a reservoir for carbon dioxide to regulate the greenhouse effect Provides habitat for about 250,000 species of plants and animals Provides,List([1180, 2363))):(cool in winter Cold deserts: Gobi - cold winters, warm to hot summers; Grasslands; - annual precipitation great enough to allow grass and trees in choice areas to grow Tropical grasslands) (evergreen broadleaf forest; found; L:in areas near the Equator - warm annual temperatures, high temperatures, and heavy rainfall almost daily - great diversity of plants and animals) (moderate average temperatures; change; ) (annual precipitation; to support; trees) (Serves as a reservoir; Provides; habitat; for about 250,000 species of plants and animals) (submerged continental shelf - represents less than 10% of oceans; contains; 90% of all) (moderate precipitation; occurring; L:on either side of Equator - Savannas - grassland) (the dry seasons; are; even longer; L:warm areas)
heavy rainfall almost daily - great diversity of plants and animals - specialized , layered niches Tropical deciduous forests
annual precipitation winters carbon dioxide beech - mature forests relatively warm, nutrient-rich, shallow water Oceans beech - mature forests winters areas heavy rainfall almost daily - great diversity of plants and animals - specialized, layered niches Tropical deciduous forests: warm moist areas which receive most of the moisture during a short wet season followed by a long dry season - less complex, drought tolerant evergreens and deciduous forests Tropical scrub forests: warm areas where the dry seasons are even longer, mostly small deciduous trees Temperate rain forests: areas which depend on rainfall and supplemental ocean fog Temperate deciduous forests: areas with moderate average temperatures that change with the seasons - dominated by a few species of broadleaf deciduous trees such as oaks, hickory, maple, poplar, and beech - mature forests have simpler structure than tropical rain forests but still demonstrate layering and high diversity Evergreen coniferous forests (Boreal or taigas): winters are long and dry with short, more moist summer - dominated by waxy conifers - spruce, fir, cedar, hemlock Aquatic Biomes Water covers more than 70% of the earth's surface Serves as a reservoir for carbon dioxide to regulate the greenhouse effect Provides habitat for about 250,000 species of plants and animals warm moist areas which receive most of the moisture during a short wet season followed by a long dry season - less complex , drought tolerant evergreens and deciduous forests Tropical scrub forests : warm areas where the dry seasons are even longer , mostly small deciduous trees Temperate rain forests : areas which depend on rainfall and supplemental ocean fog Temperate deciduous forests : areas with moderate average temperatures that change with the seasons - dominated by a few species of broadleaf deciduous trees such as oaks , hickory , maple , poplar , and beech - mature forests have simpler structure than tropical rain forests but still demonstrate layering and high diversity Evergreen coniferous forests ( Boreal or taigas ) : winters are long and dry with short , more moist summer - dominated by waxy conifers - spruce , fir , cedar , hemlock Aquatic Biomes Water covers more than 70 % of the earth 's surface Serves as a reservoir for carbon dioxide to regulate the greenhouse effect Provides habitat for about 250,000 species of plants and animals Provides,List([1180, 2363))):(cool in winter Cold deserts: Gobi - cold winters, warm to hot summers evergreen broadleaf forest moderate average temperatures annual precipitation Serves as a reservoir submerged continental shelf - represents less than 10% of oceans moderate precipitation the dry seasons
is are to regulate have extends have demonstrate are depend Provides Grasslands found change to support Provides contains occurring are
great enough to support trees L:- areas
long and dry with
the greenhouse effect
simpler structure than tropical rain forests
from high tide mark
two principle life zones
layering and high diversity Evergreen coniferous forests (Boreal or taigas T:still
cold and harsh L:continents
on rainfall and supplemental ocean fog Temperate deciduous forests
a source of iron, sand, gravel, phosphates, magnesium, oil, natural gas, etc. Oceans have two principle life zones, the Coastal Zone and Open Sea Coastal Zone: - relatively warm, nutrient-rich, shallow water
- annual precipitation great enough to allow grass and trees in choice areas to grow Tropical grasslands
L:in areas near the Equator - warm annual temperatures, high temperatures, and heavy rainfall almost daily - great diversity of plants and animals
trees
habitat for about 250,000 species of plants and animals
90% of all
L:on either side of Equator - Savannas - grassland
even longer L:warm areas