what human heart does not allow?
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The presence of septum in the heart does not allow the 'mixing of oxygen-rich' and 'carbon dioxide-rich bloods'. Explanation: As blood is carried into the heart from different 'parts of the body', this deoxygenated blood is rich in carbon dioxide.
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The presence of septum in the heart does not allow the 'mixing of oxygen-rich' and 'carbon dioxide-rich bloods
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