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Ch. 18-3 Ives,Nick

QuestionAnswer
Niche An organism's role in the ecosystem
Mutualism When both organisms are happy (+,+)
Commensalism When one organism is happy and the other is neither happy or sad (+,?)
Parasitism When one organism is happy and the other is sad (+,-)
Coevolution When two species changing together over long periods of time
Four main affecting factors competition,predators and prey,symbiotic relationships, and coevolution
Created by: 200221378
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