Symbiosis is also classified by physical attachment; symbiosis in which the organisms have bodily union is called conjunctive symbiosis, and symbiosis in which they are not in union is called disjunctive symbiosis.
Simbiosis juga diklasifikasikan berdasarkan keterikatan fisik; Simbiosis yang organismenya memiliki persatuan tubuh disebut simbiosis konjungtif, dan simbiosis di mana mereka tidak bersatu disebut simbiosis disjungtif.