Answer:
D. Red corpuscles (also known as red blood cells) are not an example of a mechanoreceptor.
Step-by-step explanation:
They are specialized cells in the blood that carry oxygen to the body's tissues. Mechanoreceptors are sensory receptors that respond to mechanical stimuli such as pressure, vibration, and stretch. The other options listed (Meissner's corpuscles, Ruffini endings, Merkel cells, and Pacinian corpuscles) are all examples of mechanoreceptors.