Final answer:
In the symbiotic relationship between cleaner wrasses and client fish, cleaner wrasses clean and remove parasites, benefiting both themselves and the client fish in a mutualistic manner.
Step-by-step explanation:
In the symbiotic relationship between cleaner wrasses and their client fish, the primary role of the cleaner wrasse is cleaning and removing parasites from the surface and gills of client fish. This cleaning process helps in keeping the fish clients healthy and free from parasitic infections. Cleaner wrasses benefit by getting a consistent food source from the parasites and dead skin they remove, which in turn could help in their survival and reproduction.
This relationship would be considered mutualism because both species, the cleaner wrasse and the client fish, benefit from the interaction. The cleaner wrasse receives food and protection while providing a valuable cleaning service that helps the client fish maintain good health.