Question: What has circulatory system with a two-chambered heart?\nOptions:\n- (A) sharks\n- (B) trout\n- (C) pan\n- (D) toads\n- (E) Birds\n- (F) animals\n- (G) mammals\n- (H) Man
Let's be accurate as possible and think step-by-step.
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Fish have a circulatory system with a two-chambered heart. Fish species include salmon and trout. Salmon and trout have a circulatory system with a two-chambered heart.
The answer: (B).
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