Parasitism is when a parasite finds a host and benefits while this host is harmed, commensalism is a relationship in which one species benefits and one is unharmed, mutualism is when al least one species benefits hope i helped
the difference is mutualism its when both organisms benefit commensalism is when 1 organism benefits and the other is unharmedparasitism is when 1 organism benefits when the other is harmed
Mutualism- *Humans and Plants (We breathe out carbon dioxide then the plants absorb it then release oxygen.... etc.) Humans and plants both benefit from this relationship Commensalism- *Killdeer...