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Chapter 3 Vocab

TermDefinition
Climax Community the stable, mature community that results when there is little change in the composition of species
Community a group of interacting populations that occupy the same area at the same time
Ecological succession the change in an ecosystem that happens when one community replaces another as a result of changing abiotic and biotic factors
Limiting Factor and abiotic factor or biotic factor that resists the numbers, reproduction, or distibution of organisms
Primary Succession the establishment of a community in an area of exposed rock that does not have any topsoil
Secondary Succession the orderly and predictable change that takes place after a community of organisms has been removed but the soil has remained intact
Tolerance the ability of any organism to survive when subjected to abiotic factors or biotic factors
Boreal Forest biome south of the tundra with dense evergreen forests and long, cold, dry winters
Climate the average weather conditions in an area, including temperature and precipitation
Desert any area in which the annual rate of evaporation exceeds the rate of precipitation
Grassland a biome that is characterized by fertile soild that are able to support a thick cover of grasses
Latitude the distance of any point on the surface of Earth north or south from the equator
Temperate Forest biome south of the boreal forest characterized by broad-leaved, deciduous trees, well-defined seasons, and average yearly precipitation of 75-150 cm.
Tropical Rain Forest hot, wet biome with year-round humidity; contains Earth's most diverse species of plants and animals
Tropical Savanna biome characterized by grasses and scattered trees, and herd animals such as zebras and antalope
Tropical Seasonal Forest biome characterized by deciduous and evergreen trees, a dry season, and animal species that include monkeys, elephants, and Bengal tigers
Tundra treeless biome with permanently frozen soil under the surface and average yearly precipitation of 15-25 cm.
Weather atmospheric conditions such as temperature and precipitation at a specific place and time
Woodland biome characterized by small trees and mixed shrub communities
Abyssal Zone deepest, very cold region of the open ocean
Aphotic Zone open-ocean zone through which sunlight cannot pass
Benthic Zone ocean-floor area consisting of sand, silt, and dead organisms
Estuary unique, transitional ecosystem that supports diverse species and is formed where freshwater and ocean water merge
Intertidal Zone narrow band of shoreline where the ocean and land meet that is alternately submerged and exposed and is home to constantly changing communities
Limnetic Zone well-lit, open-water area of a lake or pond
Littoral Zone area of a lake or pond closets to the shore
Photic Zone open-ocean zone shallow enough for sunlight to penetrate
Plankton tiny marine or freshwater photosynthetic, free-floating autotrophs that serve as a food source for many fish species
Profundal Zone deepests, coldest area of a large lake with little light and limited biodiversity
Sediment material deposited by water, wing, or glaciers
Wetlands water-saturated land area that supports aquatic plants
Created by: sjaco