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Chapter 3 - Communities and Biomes
a stable, mature community that undergoes little or no change in species over time
any biotic or abiotic factor that restricts the existence, numbers, reproduction, or distribution of organisms.
the colonization of barren land by pioneer organisms
sequence of changes that take place after a community is disrupted by natural disasters or human actions.
orderly, natural changes, and species replacements that take place in ecosystem communities over time.
the ability of an organism to withstand fluctuations in biotic and abiotic environmental factors
deeper water that never receives sunlight
group of ecosystems with the same climax communities
arid region with sparse to almost nonexistent plant life
A coastal body of water, partially surrounded by land, in which freshwater and saltwater mix
biome composed of large communities covered with rich soil, grasses, and similar small plants
the portion of the shoreline that lies between the high and low tide lines
Portion of the marine biome that is shallow enough for sunlight to penetrate.
small organisms that drift and float in the waters of the photic zone
biome just south of the tundra; characterized by a northern coniferous forest composed of pine, fir, hemlock, and spruce tree and acidic, mineral-poor topsoils
biome composed of forests of broad-leaved hardwood trees that lose their foliage annually
tropical rain forest
biome near the equator with warm temperatures, wet weather, and lush plant growth
Biome that surrounds the north and south poles; treeless land with long summer days and short periods of winter sunlight, beneath the topsoil is a layer of permafrost.