1. a biome is a large region characterized by two factors: climate and plant life. climate is the...
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CHAPTER 6: BIOMES
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A BIOME IS A LARGE REGION CHARACTERIZED BY TWO FACTORS: CLIMATE AND PLANT LIFE.
CLIMATE IS THE WEATHER CONDITIONS (TEMPERATURE AND PRECIPITATION) IN AN AREA OVER A LONG PERIOD OF TIME.
SECTION 6.1 WHAT IS A BIOME?
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PLANT LIFETHE TWO MAIN
FACTORS THAT DETERMINES WHAT TYPE OF PLANTS GROW IN A BIOME ARE TEMPERATURE AND PRECIPITATION.
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LATITUDETHE DISTANCE
NORTH OR SOUTH OF THE EQUATOR MEASURED IN DEGREES.
THE HEIGHT OF AN OBJECT ABOVE SEA LEVEL.
LATITUDE VS. ALTITUDE
ALTITUDE
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END OF 6.1: TIME FOR READING QUIZ
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SECTION 6.2: FOREST BIOMES
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TROPICAL RAIN FORESTLOCATED ON OR
NEAR EQUATORWARM YEAR
ROUNDLOTS OF
PRECIPITATIONMOST
BIODIVERSITY OF ANY BIOME
SOIL IS NOT NUTRIENT RICH
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LAYERS OF THE RAIN FORESTEmergent layer is on
top with direct sunlight = tallest trees
Canopy (lower and upper) has lots of animals, flowers, fruits and epiphytes.
Understory gets very little light so plants adapted to shade live here.
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THREATS TO THE RAINFORESTHABITAT
DESTRUCTIONTRADING OF
EXOTIC PLANTS AND ANIMALS
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LARGE AMOUNT OF RAINFALLHIGH HUMIDITYMODERATE TEMPERATURESLOCATED IN PACIFIC NORTHWEST
TEMPERATE RAIN FOREST
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TEMPERATE DECIDUOUS FORESTLOCATED ALONG EAST
COASTHAS FOUR SEASONSMOSTLY DECIDUOUS
TREES THAT LOSE LEAVES IN WINTER
PLANTS ARE ADAPTED FOR SEASONAL CHANGES AND ANIMALS ARE ADAPTED TO USE FOREST FOR FOOD AND SHELTER
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TAIGALOCATED JUST
BELOW THE ARCTIC CIRCLE
LONG WINTERSLITTLE
PRECIPITATIONACIDIC SOILCONIFEROUS
TREESANIMALS MIGRATE
AND USE CAMOUFLAGE AS ADAPTATIONS
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END OF 6.2: TIME FOR READING QUIZ
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SECTION 6.3: GRASSLAND, DESERT, AND TUNDRA
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TROPICAL GRASSLANDSSAVANNAS OF
AFRICAHAVE WET AND
DRY SEASONSPLANTS AND
ANIMALS HAVE ADAPTATIONS BASED ON THESE SEASONS
PRAIRIES IN U.S.MOSTLY GRASSESWHERE WE GROW
OUR CROPSFERTILE SOILGRAZING ANIMALS
TWO DIFFERENT GRASSLANDS
TEMPERATE GRASSLANDS
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THREATS TO THE TEMPERATE GRASSLANDSFARMING LEADS
TO SOIL EROSIONOVERGRAZING
ALSO LEADS TO SOIL EROSION
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CHAPARRALTEMPERATE
WOODLAND BIOMEMEDITERRANEAN
CLIMATEPLANTS HAVE
SMALL LEATHERY LEAVES.
PLANTS ARE ADAPTED TO FIRE
ANIMALS USE CAMOUFLAGE.
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DESERTRECEIVE VERY
LITTLE RAINVERY HOT DURING
DAY BUT COLD AT NIGHT
PLANTS CONSERVE WATER
ANIMALS RETAIN WATER AND BURROW IN GROUND
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TUNDRANORTHERN ARCTICPERMAFROSTTHIN SOILPLANTS HAVE WIDE,
SHALLOW ROOTSGROW CLOSE TO
GROUNDANIMALS MIGRATEOTHERS ARE WELL
INSULATED AND USE CAMOUFLAGE
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OIL EXPLORATIONPOLLUTIONDISRUPTING THE SIMPLE FOOD CHAINS
OF THIS VERY FRAGILE BIOME
THREATS TO THE TUNDRA
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END OF 6.3: TIME FOR READING QUIZ