Question

How does a shark's cardiovascular system differ from that of a mammal?
A) The shark's heart does not directly pump oxygenated blood to the systemic tissues.
B) The shark's heart receives both oxygenated and deoxygenated blood.
C) The shark's circulatory system has a pulmonary and a systemic circuit.
D) The shark's blood is pumped through open-ended tubes.

Answer

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