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PSSA Vocab Unit 1
Ecology Vocab ifr PSSA
Term | Definition |
---|---|
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. |