The term for the mutual benefits between two organisms in an ecosystem is called symbiosis. This interaction can take various forms, including mutualism, where both species benefit, commensalism, where one benefits without affecting the other, and parasitism, where one organism benefits at the expense of another. Symbiotic relationships are vital for maintaining ecosystem stability and dynamics, as they can enhance resource availability and foster interactions that strengthen community resilience. Understanding these relationships is crucial for ecosystem management and conservation efforts.