Axenic culture is an important tool for the study of symbiotic and parasitic organisms in a controlled manner.

The acquisition of symbiotic organisms, however, is a source of evolutionary novelty, and she is happy to produce a living example.

Mixotricha paradoxa, a symbiotic organism inside termites, host of endosymbionts.

Lichen is a type of symbiotic organism.

Plants need to live in an ecological community with pollinators and symbiotic organisms such as fungi.

Some Trill serve as hosts for a symbiotic organism that is far longer lived than the host.

Lichen were themselves complex symbiotic organisms composed of a fungus in union with an alga.

The members of both factions had special "stones" (in reality, a symbiotic organism) embedded in their chests.

Some symbiotic organisms carried within larger organisms produce light.

There is always a risk of eliminating a helpful or symbiotic organism, but the screening process attempts to account for that.