The motility that permits P. bursaria to move toward a light source is provided by
A) pseudopods.
B) a single flagellum composed of the protein, flagellin.
C) a single flagellum featuring the 9 + 2 pattern.
D) many cilia.
E) contractile vacuoles.

Question

Quizplus · Accepted Answer

P. bursaria, a type of ciliate, moves using many cilia. These hair-like structures beat in coordinated patterns to propel the organism toward light sources or away from them, a behavior known as phototaxis.

The Motility That Permits P