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MVMS Ecology

QuestionAnswer
Abiotic The nonliving, physical features of the environment. (ex air, water, soil, sunlight, temperature and climate
Biosphere The part of Earth that supports life
Biotic The features of an environment that are alive or were once alive.
Carrying capacity The largest number of individuals of one species that an ecosystem can support over time.
Commensalism A symbiotic relationship in which one organism benefits and the other is not affected.
Community All the populations of all species living in an ecosystem.
Consumer Organism that cannot make its own energy-rich molecules, but obtains its energy by eating other organisms.
Decomposer Organism that breaks down once living matter into simple, energy-rich substances.
Ecology The study of the interactions that occur among organisms and their environments.
Ecosystem All of the organisms living in an area, as well as the nonliving parts of that environment.
Energy pyramid Shows the amount of energy available at each feeding level in an ecosystem.
Habitat The place in which an organism lives.
Limiting factor Anything that restricts the number of individuals in a population.
Mutualism A symbiotic relationship in which both species benefit.
Niche An organism’s role in its environment. (ex how it obtains food, shelter, avoids danger…)
Nitrogen fixation Process in which some types of bacteria in the soil change nitrogen gas into a form of nitrogen that plants can use.
Parasitism A symbiotic relationship in which one organism benefits but the other is harmed.
Population All of the organisms of the same species that live in an area at the same time.
Producer Organism that uses an outside energy source like the sun to make energy-rich molecules.
Symbiosis Any close relationship between species.
Created by: bonniehodder
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