sepandav
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describe how the circulatory and respiratory systems form together in providing body cells with oxygenated blood?
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kaorimiyazono
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To answer this question you'll need to talk about the systemic and pulmonary circuits which make up the double respiratory system. How are they different and why is this useful/necessary? You'll need to discuss gas exchange in the lungs too. What adaptations do the lungs have to make gas exchange more efficient? How do these adaptations help?
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