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Definition
| deepest, very cold region of the open ocean |
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| open-ocean zone where sunlight cannot penetrate |
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| ocean-floor area consisting of sand, silt, and dead organisms |
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Definition
| biome south of the tundra with dense evergreen forests and long, cold, dry winters |
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Definition
| average conditions in a specific area, determined by latitude, elevation, ocean currents, and other factors |
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Definition
| stable, mature ecological community with little change in the number of species |
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Definition
| group of interacting populations that live in the same geographic area at the same time |
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Definition
| area with low rainfall, whose annual rate of evaporation exceeds its annual rate of precipitation; can support cacti and some grasses and animal species such as snakes and lizards |
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Definition
| process by which one community replaces another community because of changing abiotic and biotic factors |
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| unique, transitional ecosystem that supports diverse species and is formed where freashwater and ocean water merge |
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Definition
| biome characterized by fertile soils with a thick cover of grases |
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| narrow band of shoreline where the ocean and land meet that is alternately submerged and exposed and is home to constantly changing communities |
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| distance of a point on Earth's surface north or south of the equator |
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| biotic or abiotic factor that restricts the number, distribution, or reproduction of a population within a community |
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Definition
| well-lit, open water area of a lake or pond |
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Definition
| area of a lake or pond closest to the shore |
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Term
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Definition
| open-ocean zone shallow enough for sunlight to penetrate |
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Definition
| tiny marine of freshwater photosynthetic, free-floating autotrophs that serve as a food source for many fish species |
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Definition
| establishment of a community in an area of bare rock or bare sand, where no topsoil is present |
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Definition
| deepest, coldest area of a large lake with little light and limited biodiversity |
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| orderly change that occurs in a place where soil remains after a community of organisms has been removed |
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Definition
| material deposited by water, wind, or glaciers |
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| biome south of the boreal forest characterized by broad-leaved, deciduous trees, well-defined seasons, and average yearly precipitation of 75-150 cm |
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Term
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Definition
| organism's ability to survive biotic and abiotic factors |
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Definition
| hot, wet biome with year-round humidity; contains Earth's most diverse species of plants and animals |
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Definition
| biome characteriized by grasses and scattered trees, and herd animals such as zebras and antelopes |
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Definition
| biome charactized by deciduous and evergreen trees, a dry season, and animal species that include monkeys, elephants, and Bengal tigers |
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Definition
| treeless biome with permanently frozen soil under the surface and average yearly precipitation of 15-25 cm |
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Definition
| atomospheric conditions such as tempature and precipitation at a specific place and time |
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Definition
| water-satrated land area that supports aquatic plants |
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Definition
| biome characterized by small trees and mixed shrub communities |
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