Ectosymbiosis vs. Ectosymbiont

Ectosymbiosisnoun

(ecology) A form of symbiosis in which a partner (the ectosymbiont) remains on the surface of its host

Ectosymbiosis

Ectosymbiosis is a form of symbiotic behavior in which a parasite lives on the body surface of the host, including internal surfaces such as the lining of the digestive tube and the ducts of glands. The parasitic species is generally an immobile, or sessile, organism existing off of biotic substrate through mutualism, commensalism, or parasitism.

Ectosymbiontnoun

(ecology) A partner in a symbiotic relationship that remains on the surface of its host or occupies a body cavity