Mutualistic refers to a type of relationship between two different species where both benefit from the interaction. This can occur in various ecosystems, such as between plants and pollinators. In this case, the plant provides nectar for the pollinator, while the pollinator helps the plant reproduce by spreading its pollen. Another example of mutualism is the relationship between clownfish and anemones. The clownfish receives protection from predators by living among the anemone's stinging tentacles, while the anemone benefits from the clownfish's waste, which provides nutrients. These interactions are essential for maintaining ecological balance.