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JIMS ecology
| Term | Definition |
|---|---|
| ecology | the study of the interactions among organisms and their environment |
| abiotic factors | the nonliving parts of the environment. |
| biotic factors | the living or once living parts of the environment. |
| population | all of the individuals of one species that live in the same area. |
| community | the populations of different species that interact in some way |
| ecosystem | all of the communities in an area and the abiotic factors they interact with. |
| biosphere | the part of the Earth that supports life. |
| population density | number of individuals occupy a definite area |
| limiting factor | any biotic or abiotic factor that limits the number of individuals in a population |
| symbiosis | any close interaction between two or more different species. |
| niche | the role, or job, of an organism in the ecosystem |
| habitat | a place where an organism lives |
| commensalism | benefits one organism without affecting the other organism |
| parasitism | relationship between two species in which one species benefits and the other is harmed. |
| mutualism | relationship between two species in which both species benefit |