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Unit 7 Ecosystems

TermDefinition
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.
Created by: Davis001