Which of the following statements about open and closed circulatory systems is false?
A. Closed circulatory systems use muscular
hearts to pump blood through blood vessels,
whereas open circulatory systems lack any
kind of muscular pump.
B. Closed circulatory systems operate under
higher pressure than open circulatory
systems.
C. Closed circulatory systems can more
effectively control the flow of blood to specific
body regions than open circulatory systems.
D. Closed circulatory systems deliver
materials at faster rates than open circulatory
systems.
E. Closed circulatory systems have higher
resistance to flow than open circulatory
systems.
A
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