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Unit 7 Ecosystems
| Term | Definition |
|---|---|
| Habitat | A place where an organism naturally lives and grows. |
| Biome | A large geographic area that is characterized by similar flora and fauna. |
| Microhabitat | A very small specialized habitat, such as the space under a rock. |
| population | A group of interacting individuals of the same species located in the same area. |
| Ecosystem | A system comprising all the biotic and abiotic factors in an area and all the interactions among them. |
| Biodiversity | The number of different species of plants and animals in an area. The variety of organisms in an ecosystem or biome in an area. |
| Succession | A series of changes in the species composition of a community over time. |
| Sustainable | Capable of maintaining the current community at a steady level without exhausting natural resources or causing severe ecological damage. |
| Climax Community | A relatively stable state of succession, or the end product of succession. |
| Secondary succession | A process started by an event that reduces an already established ecosystem to a smaller population of species. The regrowth of organisms in a area that has been disturbed. |
| Primary succession | A process that develops a organisms in a previously uninhabited and barren habitat with little or no soil. |
| Pioneer species | The first organisms to live in an area. |
| Limiting factor | A condition or resource that keeps a population at a certain size. A prohibiting factor in an ecosystem that controls population. |
| Symbiosis | A relationship between two or more organisms that live closely together. |
| Mutualism | A type of symbiotic relationship in which both organisms receive benefits from their relationship. |