Symbiotic Relationships

In science class, we have learned about symbiotic relationships. Mutualism, commensalism and parasitism are different forms of symbiotic relationships. Mutualism is when on organism benefits and the other organism isn't harmed. Commensalism is when both organisms benefit and neither is harmed. Lastly, parasitism is when a organism benefits while the other is harmed. In my opinion, if our teacher didn't teach us about symbiotic relationships, we wouldn't understand what they would mean. Finally, mutualism, commensalism and parasitism are all forms of symbiotic relationships.