Why does the blood returning to the heart have very

19.What is the function of heart valves? They regulate the heart rhythm. They return blood to the heart. They force blood to
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Why does the blood returning to the heart have very little oxygen in it
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why does the blood returning to the heart have very little oxygen in it
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The main organs of the cardiovascular system are• Blood Vessels, Heart, Pancreas • Heart, Blood, Stomach • Heart, Lungs,
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Why does the blood returning to the heart have very little oxygen in it?answer from the options The heart is not pumping oxygen
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what is the job of the coronary arteries?1. to supply the heart with oxygen in the blood 2. to supply the heart with carbon
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Why does the blood returning to the heart have very little oxygen in it?A. The heart is not pumping oxygen fast enough . B. The
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an adult male's heart pumps about 2.8 million liters of blood a year. It his heart beats 70 times a minute, how much blood does
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The cardiovascular system consists ofA. blood, blood vessels, heart, lymph, lymph vessels, and lymphatic tissues. B. heart,
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The blood vascular system consists of blood vessels (arteries, arterioles, capillaries, and veins) that convey blood from the
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