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4.2 Vocabulary
Term | Definition |
---|---|
Tolerance | ability to survive and reproduce under circumstances that differ from their optimal conditions |
Habitat | area where an organism lives, including the biotic and abiotic factors that affect it |
Niche | an organisms occupation |
Resource | any necessity of life, such as water, nutrients, light, food, or space |
Competitive Exclusion Principle | principle that states that no two species can occupy the same niche in the same habitat at the same time |
Predation | interaction in which one organism captures and feeds on another organism |
Herbivory | interaction in which one animal feeds on producers |
Keystone Species | single species that is not usually abundant in a community yet exerts strong control on the structure of a community |
Symbiosis | relationship in which two species live close together |
Mutalism | symbiotic relationship in which both species benefit from the relationship |
Parasitism | symbiotic relationship in which one organism lives on or inside another organism and harms it |
Commensalism | symbiotic relationship in which one organism benefits and the other is neither helped nor harmed |