A Type of Sensory Organ Found in Many Invertebrates Consists

Multiple Choice

A type of sensory organ found in many invertebrates consists of a spherical, fluid filled chamber that contains grains of sand or other dense granules. The cells lining the chamber are mechanoreceptors with sensitive cilia that project into the lumen. The granules settle at the low point within the chamber, deforming the cilia underneath and stimulating the cells directly below them. In this sensory organ, the responses of multiple mechanoreceptors are combined to enable the detection of

A) movement.
B) pressure.
C) gravity.
D) temperature.
E) sound.