Difficulty: Easy
Correct Answer: Goat
Explanation:
Given data
Concept/ApproachCompare digestive physiology.
ReasoningGoat → a ruminant (four-chambered stomach; cud-chewing).Dog, Cat, Horse → non-ruminants.
NoteOther groupings are possible (pets/livestock), but the ruminant criterion yields a unique outlier.
Final AnswerGoat
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