Answer:
Symbiosis is the ecological relationship between two or more organisms living closely together with some form of feeding relationship involved. There are three main symbiotic relationships. Mutualism, where both organisms benefit. Commensalism, where one organism benefits while the other organism is not harmed or helped. Parasitism, where one organism is harmed but not killed automatically and the other is benefited.
Step-by-step explanation:
edge 2020