| Term | Definition |
|---|
| organism | a form of life with a body made up of organs, organelles, or other parts that work together to carry on the various processes of life |
| population | the total amount of an organism in a given area |
| community | organisms interacting with each other in a given area |
| ecosystem | a community of organisms interacting with the environment |
| biosphere | the area where living organisms exist on a planet |
| terrestrial | living on or in the ground |
| aquatic | living in or near water |
| limiting factor | an environmental factor that slows or limits the population of an organism |
| carrying capacity | the maximum number of an organism that can survive in an ecosystem |
| carbon cycle | how carbon is constantly being transferred in the biosphere |
| nitrogen cycle | how nitrogen is constantly being transferred in the biosphere |
| carbon dioxide- oxygen cycle | the exchange of carbon dioxide and oxygen in the biosphere |
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