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| • Cell tissue organ organism population community ecosystem biome biosphere |
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• Large geographic area that is characterized by a predominant type of vegetation • Vegetation depends on abiotic factors • Contains several ecosystems • Most are terrestrial, some are aquatic • Not clear-cut—gradual changes from biome to biome |
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| • All the terrestrial and aquatic biomes—entire portion of Earth inhabited by life |
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• Introduction of pioneer organisms into a disturbed environment after a disaster • These organisms are replaced by other species, then are replaced by other species again |
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• First organisms to inhabit a barren landscape during ecological succession • Often lichen are pioneer organisms |
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• Final organisms that appear during ecological succession • Stable unless there is another disaster |
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• Terrestrial biome found along equator • Most rainy biome on earth, warm temperature year round, little sunlight filters to the ground • Life thrives! Monkeys, birds, lizards, snaks, orchids, vines, broadleaf trees |
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• Terrestrial biome found along equator • Seasonal rainfall—droughts can last 8 to 9 months, mild temperatures • Mostly grasses and wimpy trees for vegetation; zebras, lions, hyenas, elephants, giraffes |
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• Farther from equator than tropical rain forest/savanna • Smallest annual amount of rainfall, huge temperature fluctuation • Mostly cacti for plants; snakes, lizards, scorpions for animals |
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• Wild west kind of biome • Dry and warm summers, rest of seasons are cool, rainy winters • Trees, shrubs, deer, goats, amphibians, reptiles, birds |
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• Almost as much rain as troopical rain forest, cool autums, cold winters • Not too much diversity of life: broadleaf trees like oaks, maples, chestnuts, hockories; animals like deer, squirrels, black bears, beavers, raccoons |
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• Rainy, almost as much as tropical rain forest • Cold winters not much plant life: cone-bearing trees like pines, firs, hemlocks; animals like bears, wolves, moose |
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• Really cold—frozen topsoil • Few plants, they’re small; many animals (caribou!) migrate south for winter |
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| • Only place on earth with no biome :( |
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• Ponds, lakes, streams, rivers • Organisms here need to be able to get rid of excess water gained by osmosis |
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• Biggest ones are oceans—most stable ecosystems on Earth • Salinity and temperature do not fluctuate that much because there’s so much water • Organisms here need to keep water—the water outside is saltier so it leaves their cells by osmosis |
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