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Unit 6 diversity
Diversity of ecosystems
Term | Definition |
---|---|
Ecosystem | The relationship among all of the living and non living elements in an environment. |
Biomass | The total weight of all organisms in each tropic level of food chains. |
Biome | A large geographic area of distinctive plant and animal groups, which are adapted to that particular environment. |
Succession | A process of ecological change in which a series of natural communities are established and then replaced over time. |
Pioneer species | The first organisms to occupy a new area. |
Adaptation | Modification of an organism or its parts that aids in survival. |
Symbiosis | Two organisms living together and one or both benefits from the relationship. |
Mutualism | Type of symbiotic relationship in which both organisms benefit. |
Commensalism | Type of symbiotic relationship in which one organism benefits and the other is unaffected. |
Parasitism | Type of symbiotic relationship in which one organism is harmed by the other. |
Camouflage | Concealment by means of disguise. |
Extinction | The loss of an entire species. |
Endangered species | A species threatened with extinction due to decline in population. |
Climax community | A stable ecosystem containing mature vegetation and marks the final stage of ecological succession. |
Primary succession | Growth of organisms in an area that is new and previously.empty of life. |
Secondary succession | Re growth of organisms in an area that has been disturbed or destroyed. |