The human body creates more carbon dioxide while exercising than when it is at rest. Which of the following best explains how the systems in the human body work together to maintain homeostasis and remove excess carbon dioxide?
А) The respiratory system takes in more oxygen, and the blood transports the oxygen and carbon dioxide to and from the tissues.
B) The circulatory system takes in less carbon dioxide, and the lungs transport more oxygen to and from the tissues.
C) The respiratory system takes in less carbon dioxide, and the heart pumps more oxygen to and from the tissues.
D) The circulatory system takes in more oxygen, and the skin transports the oxygen and carbon dioxide to and from the tissues.
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