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4.2 Vocabulary

TermDefinition
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
Created by: little_timmy
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