Which term refers to the relationship between two different organisms where both benefit?

The term that describes the relationship between two different organisms where both benefit is symbiosis. This type of relationship is characterized by the mutual dependence and cooperation of the involved species, leading to advantages for both parties. For example, in a mutualistic relationship like that between clownfish and sea anemones, the clownfish receives protection from predators while the sea anemone benefits from the nutrients provided by the clownfish's waste.

In contrast, competition refers to the struggle between organisms for the same resources, such as food or habitat, which often leads to a negative outcome for one or both competitors. Predation describes a relationship where one organism (the predator) feeds on another (the prey), which is inherently beneficial for the predator but detrimental to the prey. Parasitism involves one organism benefiting at the expense of another, where the parasite lives on or in the host, deriving nutrients and potentially harming the host organism. Through these distinctions, symbiosis stands out as the correct answer since it highlights a mutually beneficial relationship.