Classification – Human senses: three senses can detect stimuli from a distance (without direct contact); one requires direct contact with the stimulus. Which is the odd one out? Options: See, Hear, Smell, Taste.

Introduction / Context:
In sensory classification, modalities can be grouped by whether they typically work at a distance or require direct contact. This distinction cleanly separates one option from the other three.

Given Data / Assumptions:

• See (vision) detects light from objects at a distance.
• Hear (audition) detects sound waves that travel through air.
• Smell (olfaction) detects airborne molecules, often at a distance.
• Taste (gustation) detects chemicals only when they contact the tongue or oral cavity.

Concept / Approach:
Group senses by operational range: distance sensing versus contact-based sensing. The sense that needs direct contact is the outlier.

Step-by-Step Solution:
Vision: distance-based.Hearing: distance-based.Smell: usually distance-based via airborne volatiles.Taste: requires direct contact with dissolved chemicals.

Verification / Alternative check:
Physiology texts consistently categorize taste as contact-limited compared to vision, audition, and olfaction.

Why Other Options Are Wrong:
See, Hear, Smell: All can function without touching the source, placing them in the same operational group.

Common Pitfalls:
Confusing smell as contact-based; while intensity can increase near the source, olfaction generally works at a distance through the air.

Final Answer:
Taste