Classification – Odd one out (paired vs unpaired body parts) Among these body parts, three normally occur as paired organs in humans; one is not typically paired. Identify the odd one out.

Introduction / Context:
Human-body classification items often leverage anatomical pairing. Many organs/limbs occur in left/right pairs, while others are singular or not thought of as strictly “one per side.” Recognizing this biological regularity guides the choice.

Given Data / Assumptions:

• Eyes (paired), Ears (paired), Hands (paired)
• Intestines (not typically described as a single paired organ; rather a system of small and large intestines)

Concept / Approach:
Check whether the noun denotes a standard lateral pair in humans (left and right counterpart). Reject items that are not lateral pairs.

Step-by-Step Solution:
Eyes → left/right pair.Ears → left/right pair.Hands → left/right pair.Intestines → digestive organs, not a left/right pair → odd one out.

Verification / Alternative check:
Substitute with “one of the two …”: works for eyes/ears/hands but not for intestines. The linguistic check mirrors the anatomical fact.

Why Other Options Are Wrong:

• Eyes → paired.
• Ears → paired.
• Hands → paired.
• None of these → there is one clear non-paired item (Intestines).

Common Pitfalls:
Confusing “lungs” (paired) with “intestines” (a tract composed of parts). The test targets lateral pairing, not organ multiplicity.

Final Answer:
Intestines