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24 Cards in this Set
- Front
- Back
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carrying capacity
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the largest population that a given environment can support over a long period of time
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prey
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an organism that is eaten by another organism
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predator
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an organism that eats other organisms
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symbiosis
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a close, long-term associations between two or more species
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mutualism
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a symbiotic ralationship in which both organisms benefit
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commensalism
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a symbiotic relationship in which one organism benefits and the other is unaffected
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parasitism
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a symbiotic associations in which one orangism benefits while the other is harmed
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coevolution
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the long-term changes that take place in two species because of their close interactions with one another
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abiotic
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describes nonliving factors in the environment
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biome
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a large region characterized by a specific type of climate and certain types of plant and animal communities
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savanna
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a tropical grassland biome with scattered clumps of trees
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desert
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a hot, dry biome inhabited by organisms adapted to survive high daytime temperatures and long periods without rain
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tundra
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a far-northern biome characterized by long, cold winters, permafrost, and few trees
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permafrost
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the permanently frozen ground below the oil surface in the arctic tundra
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marine
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describes and ecosystem based on salty water
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phytoplankton
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a micro scopic photosynthetic oranism that floats near the surface of the ocean
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zooplankton
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protozoa that, along with the phytoplankton they consume, form the base of the ocean's food web
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tributary
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a small stream or river that flows into a larger one
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littoral zone
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the zone of a lake or a pond closest to the edge of the land
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open-water zone
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the zone of a lake or pond that extends from the littoral zone out across the top of the water and thatis only as deep as light can reach through the water
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deep-water zone
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the zone of a lake or pond below the open-water zone where no light reaches
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wetland
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an area of land where the water level is near or above the suface of the ground for most of the year
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marsh
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a treeless wetland ecosystem where such plants as cattails and rushes grow
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swamp
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a wetland ecosystem in which trees and vines grow
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