Assertion: bioluminescence | /r/ObjectUse | used as defense
Facets:
value: against predators
type: PURPOSE
value: in many species of phytoplankton
type: OTHER
Source sentences:
text: In many species of phytoplankton, bioluminescence is used as a defense against predators.
text: Bioluminescence is used predominantly as a form of communication between animals, and can be used for defense, offense, and intraspecific communication.