Assertion: dinoflagellate's flagellum | /r/CapableOf | act as rudder
Facets:
value: presumably
type: DEGREE
value: for steering
type: PURPOSE
Source sentences:
text: One flagellum, called the transverse flagellum, wraps around the body of the dinoflagellate, providing the bulk of propulsive energy, and the longitudinal flagellum trails behind, acting as a rudder.
text: The other flagellum is directed posteriorly along a longitudinal groove and presumably acts like a rudder for steering.