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PSSA Vocab Unit 1

Ecology Vocab ifr PSSA

TermDefinition
ecosystem A community of living organisms and their interrelated physical and chemical environment.
environment The surroundings or conditions in which a person, animal, or plant lives or operates.
homestasis The tendency for a system to remain in a state of equilibrium by resisting change.
abiotic A nonliving factor or element (e.g., light, water, heat, rock, energy, mineral).
biotic An environmental factor related to or produced by living organisms.
biomes A community of living organisms of a single major ecological region.
niche The role played by an organism in an ecosystem; its food preferences, requirements for shelter, special behaviors and the timing of its activities (e.g., nocturnal, diurnal), interaction with other organisms and its habitat.
Created by: gmanwiller
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