What has a relatively complex circulatory system with a three-chambered heart?\nOptions:\n- (A) frogs\n- (B) a fish\n- (C) salmon\n- (D) alpacas\n- (E) Man\n- (F) Birds\n- (G) sharks\n- (H) pan Let's be accurate as possible.
User
Amphibians have a relatively complex circulatory system with a three-chambered heart. All frogs are amphibians. Frogs have a relatively complex circulatory system with a three-chambered heart.
The final answer: (A).
Assistant