Question: what are 5 examples of commensalism?
Answer: Barnacles. While some barnacles are parasitic and others root on nonliving surfaces like rocks, many species are commensal. ... 
Birds. Birds that live in the hollows of trees are commensal. ... 
Bromeliads. ... 
Cattle Egrets. ... 
Epiphytic Plants. ... 
Gila Woodpeckers and Small Animals. ... 
Gobies. ... 
Golden Jackals.