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ch 18 termss
| Term | Definition |
|---|---|
| ecology | the study of the ineractions between organisms and the other living and non living componetns of their enviroment |
| ecological model | a model that represents or discrobes relatioships of the components of an ecological system |
| ecosystem | a community of organisms and their aboit environment |
| population | a group of organisms of the same speacies that live in a specific geographic area. and interbreed |
| interdependence | the dependence of every organism on its connection with other living and non,living parts of its environment |
| biosphere | the part of earth where life exists; all living organisms on earth |
| community | a group of species that live in the same habitat and interact with each other |
| habitat | the place where an organism usually lives |
| biotic factor | a factor that is associcated with or results from the activity of living organisms |
| abiotic factor | an inviromental factor that is not associated with the activities of living things |
| tolerance curve | |
| acclimation | an organiisms change in response to it's enviroment |
| conformer | |
| regulater | a genetic unit that regulates or suppresses the activity of one or more structural genes |
| dormacy | a state in which seeds, spores, bulbs, and other reproductive organs stop growth and devlopement reduce metablosim explesly repiration |
| migration | any movement of indivduls or population from one location to anotherexpesially periodic group movement that is spefic to one species |
| niche | the unique position by a species, both in terms of it's physical use. |
| generalist | |
| specialist | |
| producer | an organism that can make organic molecules from inorganic moleaclues; a photosynthesis or chemsythesis autotrough that serves as a basic food source in an ecosystem. |
| chemsynthesis | the production od carbohydrates through the use of energy from inorganic molecules instead of light |
| gross primary productivity | the rate at which organic matter is assimulatedby plants and other producers during a period of time in a certain area. |
| biomass | any organic material that has been produced in an ecosystem. |
| net primary productivity | the rate at which biomass acculates in an ecosystem |
| consumer | an organism that eats other organism or organic matter instead of producing it's own food |
| herbavore | an organism that eats plants |
| cranavore | an organism that eats animals |
| omnivore | an organism that eats a varity of other organisms including animals and plants |
| detrivore | a consumer that feeds on dead organisms, parts of wastes of other organism. |
| decomposer | an organism that feeds by breaking down organic matter from dead organisms examples bacteria and fungi |
| trophic level | an organisms relative position in a sequence of energy transfers in a food chain or a food pyramid ex. producers and primary and secondary. |
| food chain | the pathway of energy transfer through various changes as a result of the feeding patterns of organisms |
| food web | a diagram the shows the feeding relationships among organisms in an ecosystem |
| biochemical cycle | the circulation of substances through living organisms from or to the envirment |
| ground water | the water that is beneath earths surface |
| water cycle | |
| transpiration | |
| carbon cycle | the movement of carbon from nonliving environment to living things and back |
| nitrogen cycle | |
| nitrogen fixation | |
| nitrogen-fighting bacteria | |
| ammonification | the formation of ammonia compounds in the soil by action of bacteria on decaying matter |
| nitrification | the process by which nitrates and nitrates |
| denitrification | the liberating of nitrogen from nitrogen-containing compounds by bacteria in the soil |
| phosphorus cycle |
Created by:
grimma17
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