The Classification of a Receptor as a Photoreceptor or a Mechanoreceptor

Question

The classification of a receptor as a photoreceptor or a mechanoreceptor depends on
A) the location of origin of the stimulus it perceives.
B) the modality of the stimulus it perceives.
C) its location in the body.
D) whether it is a somatic or visceral receptor.

Accepted Answer

Photoreceptors and mechanoreceptors are classified based on the modality of the stimulus they perceive; photoreceptors detect light, while mechanoreceptors detect mechanical changes such as pressure or vibration.