Assertion: paramecium | /r/CapableOf | encounter obstacle
Facets:
Source sentences:
text: If paramecium encounters an obstacle, it reverses the ciliary beat and moves back.
text: When a paramecium encounters an obstacle, it exhibits the so-called avoidance reaction: It backs away at an angle and starts off in a new direction.
text: When it encounters an obstacle, it backs away at an angle and starts off in a new direction.
text: When a paramecium encounters an obstacle, it exhibits the so-called avoidance reaction: It backs away at an angle and starts off in a new direction.