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Chapter 3

Interactions Among Living Things

QuestionAnswer
natural selection a characteristic that makes an individual better suited to its enviroment
adaptions the behaviors and physical characteristics that allow organisms to live succesfully in thier enviroment
niche the role of an organism in its habitat, or how it makes it's living
competition the struggle between organisms to survive as they attempt to use the same limited resource
predatation an interaction in which one organism kills another for food
predator the organism that does the killing
prey the organism that is killed
symboisis a close relationship between two species that benefits at least one of the species
mutalism a relationship in which both species benifit
commensalism a relationship in which one species benefits and the other is neither harmed nor helped
parasitism involves one organism living on or inside another organism and harming it
parasite the organism that benefits
host the organism that it lives on or in
Created by: jbrennan
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