Biosphere - Ecosystem - the living (biotic) and nonliving...

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Biosphere - the narrow band around the earth within which life exists Ecology - the  branch of biology concerned with the relationships between organisms and their  environment. Ecology examines the manner in which organisms affect their  environment, and are in turn affected by their environment. Ecologist may study nature  at various levels of organization including species, populations, communities,  ecosystems, biomes, and the biosphere.   Species - a group of similar organisms that freely interbreed to produce fertile offspring   Populations - an interbreeding group of individuals of a particular species isolated from  other groups   Community - all populations in a certain geographical area
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Unformatted text preview: Ecosystem - the living (biotic) and nonliving (abiotic) components interacting within a community. The biotic factors would include the various organisms present in the community; while the abiotic factors would include such variables as sunlight, air, water, nutrients, oxygen, wind, pH, and fire. Biome - large biogeographical regions of the earth characterized by a certain climate and populated by characteristic assemblages of plants and animals. Some of the earth's major biomes include the tropical rain forest, temperate deciduous forest, northern coniferous forest (taiga), savanna, temperate grassland (prairie), tundra, and desert....
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