Biology, 10.07.2021 03:20 katelynwest1

What does a closed circulatory system mean? a) The blood travels through a systemic circulation, which includes the heart and body, and a pulmonary circuit with included the heart and lungs
b) the blood flows through the heart once during each circulation of the body
c) Blood always stays entirely inside the blood vessels. A separate fluid called tissue fluid bathes the tissues and cells

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