| Term | Definition |
|---|
| interdependence | the theme found throughout ecology |
| ecological models | represents or describes the relationship between the components of an ecological system |
| biosphere | the thin volume of earth and its atmosphere that supports life |
| ecosystems | includes all of the organisms and the nonliving enviornment found in a particular place |
| community | all of the interacting organisms living in an area |
| population | includes all of that members of a species that live in one place at one time |
| biotic factors | the living components of the enviornment |
| abiotic factors | the nonliving factors of the enviornment |
| acclimation | some organisms can ajust their tolerance to abiotic factors |
| conformers | organisms that do not regulate their internal conditions |
| regulators | organisms that use energy to control some of their internal condidtions |
| niche | specific role, or way of life, of a species within its enviornment |
| gross primary productivity | the rate at which organic matter is assimilated by plants and other producers during a period of time over a certain area |
| net primary productivity | the rate at which biomass accumulates in an ecosystem |
| food chain | the pathway of energy transfer through various stages as a result of teh feeding patters of a series of organisms |
| food web | a diagram that shows the feeding relationships amond organisms in an ecosystem |
| energy transfer | ecosystems contain only a few trophic levels because there is a low rate of energy transfer between each level |
| energy pyramid | shows how much evergy is at each trophic level |
| evaporation | add water as vapor to the atmosphere |
| transpiration | water evaporates from the leaves of plants |
| precipitation | water leaves the atmosphere |
| the carbon cycle | photosynthesis and cellular respiration form the base |
| the nitrogen cycle | the complex pathway that nitrogen follows in an ecosystem |
| the phosphorus cycle | the movement of phosphorus from the environment to organisms and then back to the enviornment |
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