Relacionar Columnas Define Ecological RelationshipVersión en línea Define Ecological Relationships por Amanda O'Malley 1 Predation 2 Commensalism 3 Mutualism 4 Parasitism 5 Competition Both organisms benefit by their association with eachother. One organism is harmed and the other benefits. One organism benefits, the other is neutral (unharmed but does not benefit). One organism eats another organism. Organisms competing for the same limited resource.