Copyright Pearson Prentice Hall biology Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall 4-3 Biomes Photo Credit: ©Michael Fogden/DRK PHOTO Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall Biomes A biome is a complex of terrestrial communities that covers a large area and is characterized by certain soil and climate conditions and particular assemblages of plants and animals. Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall The Major Biomes The Major Biomes The world's major biomes include: tropical rain forest tropical dry forest tropical savanna desert temperate grassland temperate woodland and shrubland temperate forest northwestern coniferous forest boreal forest tundra Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall The Major Biomes Biomes are defined by a unique set of abiotic factors—particularly climate— and a characteristic assemblage of plants and animals. Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall The Major Biomes 60°N 30°N 0° Equator 30°S 60°S Tropical rain forest Temperate grassland This map shows the locations of the world’s major biomes. Other parts of Earth’s surface are classified as mountains or ice caps. Each biome has a characteristic climate and community of organisms. Temperate forest Northwestern coniferous forest Tropical dry forest Desert Temperate woodland and shrubland Boreal forest (Taiga) Tropical savanna Tundra Mountains and ice caps Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall Other Land Areas Other Land Areas Mountain ranges and polar icecaps do not fit neatly into any of Earth’s major biomes. Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall Other Land Areas Mountain Ranges Abiotic and biotic conditions vary with elevation. Temperatures become colder as you move from base to summit. The amount of precipitation increases as you move from base to summit. Plants and animals also change, adapting to the changing environment. Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall Other Land Areas Polar Ice Caps The polar regions are cold all year round. In the north polar region, the Artic Ocean is covered with sea ice and a thick ice cap. Dominant organisms include mosses, lichens, polar bears, seals, insects, and mites. Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall 4-3 Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall 4-3 When the climate in a small region of a biome is different from the overall climate of the biome, the region’s climate is called tolerance. a harsher climate. a microclimate. a local variation. Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall 4-3 The ability of an organism to survive under conditions that differ from its optimal condition is called niche. tolerance. variation. succession. Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall 4-3 Which of the following biomes is characterized by less than 25 centimeters of annual precipitation? tropical savanna desert boreal forest temperate grassland Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall 4-3 Which of the following biomes is characterized by a mixture of deciduous and coniferous trees? temperate woodland and shrubland boreal forest temperate forest tropical dry forest Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall 4-3 Which of the following biomes is characterized by the presence of permafrost? boreal forest temperate grassland northwestern coniferous forest tundra Copyright Pearson Prentice Hall
END OF SECTION