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ECOLOGY
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the study of the interactions among living things and their surroundings
Eco: (from Greek oikos, meaning “house”)
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Organism
An individual living thing
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Population
A group of the same species living in the same area
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Community
A group of different species that live together in one area
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Ecosystem
All of the organisms (biotic) as well as the climate, soil, water, rocks and other nonliving things (abiotic) in a given area
Biome
A major regional or global community of organisms, usually characterized by the climate conditions and plant communities of the region