The term for a mutualistic relationship between organisms is called symbiosis. In symbiotic relationships, two different species interact closely, often providing benefits to each other. Mutualism is a specific type of symbiosis where both organisms gain advantages, such as bees pollinating flowers while obtaining nectar. This interaction enhances survival and reproductive success for both parties involved. Understanding symbiotic relationships is important in ecology, as they illustrate the interconnectedness of ecosystems and the intricate balance required for biodiversity and ecosystem stability.