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Ecosystem Structure
| Term | Definition |
|---|---|
| ecosystem | a community of living organisms interacting with their physical environment |
| biotic factors | living components of an ecosystem |
| abiotic factors | nonliving, physical, and chemical components |
| habitat | the natural environment where an organism lives |
| niche | an organisms role and position withing its environment, including all interactions |
| biodiversity | the variety of life in a particular habitat or ecosystem |
| species richness | the number of different species in an ecosystem |
| species evenness | the relative abundance of each species in an ecosystem |