Ans.
Sea anemones and clownfish show a type of biological association, called as commensalism, in which both organisms get benefits from each other. Clown fish lays its eggs near a sea anemone as a reproductive strategy.
The clownfishs build nest on coral or rock near the sea anemone and lays their eggs here. It provides protection to their eggs from their predators as sea anemones are one of the most toxic species that makes all other predators to stay away from eggs of clownfish.