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Chapter 4

Vocabulary

QuestionAnswer
Biotic factor living things that shape an ecosystem
Abiotic factor non-living chemical and physical factors in the environment
Niche physical and biological conditions in which all organisms lives and the way in which the organism uses those conditions
Resource any necessity of lifeq
Competitive exclusion principle 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
Symbiosis relationship in which two species live togetherq
Mutualism both species benefit from the relationship
Commenssalism none member of the association benefits and the other is neither helped or haarmed
Parasitism one member lives on or inside another organism and harms it
Ecological successsion series of predictable changes that occurs in a community over time
Primary succession succession that occurs on surfaces where no soil exists
Pioneer species the first species to populate the area
Secondary succession community interactions tend to restore the ecosystems to its original condition
Created by: johnnyslane
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