A lichen is a fungus with symbiotic algae among its cells.
Symbiotic association with other animals, in varying degrees of interdependence, is frequent.
Most anemones have symbiotic algae that live in their tissues.
This symbiotic relationship between the song and the film proved to be beneficial to both Guns N' Roses and T2 as both enjoyed immense commercial success in 1991.
Their cells during the period of incubation of the symbiotic organism are abundantly supplied with starch.