Which animals have a circulatory system?\nOptions:\n- (A) insects\n- (B) mammals\n- (C) fur seals\n- (D) sharks\n- (E) cows\n- (F) squids\n- (G) a fish\n- (H) chickens Think carefully first, then make a decision. My thoughts:
User
Mollusks have a circulatory system with one or two hearts that pump blood. Interestingly, a squid is also a mollusk. Squids have a circulatory system. So the answer is (F).
Assistant