What is the only sense that requires alteration and adjustment of the stimulus before it strikes the receptors?

Name: What is the only sense that requires alteration and adjustment of the stimulus before it strikes the receptors?
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Question

Quizplus · Accepted Answer

Sight requires the alteration and adjustment of light through the lens of the eye before it strikes the receptors (photoreceptors) on the retina. This process involves bending (refraction) of light to focus images directly onto the retina for clear vision.

What Is the Only Sense That Requires Alteration and Adjustment