Question

multiple choice question
what is a sensory receptor?

o a structure which enhances the organs response to a stimulus
o a bare nerve ending that senses heat or pain
o a structure specialized to detect a stimulus

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Explanation:

A sensory receptor is a structure specialized to detect a stimulus. A bare nerve ending that senses heat or pain is just one type of sensory receptor (nociceptor for pain, thermoreceptor for heat). The first option about enhancing the organ's response is incorrect as the main function is detection, not enhancement.

Answer:

a structure specialized to detect a stimulus