Final answer:
The mutualistic relationship between clownfish and sea anemones is a prime example where both species benefit, with protections and cleaning services being exchanged.
Step-by-step explanation:
Clownfish and sea anemones demonstrate a classic example of a mutualistic relationship in the oceanic environment. The clownfish benefits from the anemone’s stinging tentacles for protection against predators, while in return, it provides the sea anemone with the removal of parasites and ensures better water circulation. This relationship clearly shows how mutualism works, as both species gain benefits that aid their survival.