Sherebanu
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Hi please can you help me with this question?
How does double circulation enable mammals to carry out effective gas exchange?
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Hajra Momoniat
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First of all a double circulatory system is where the blood flows through the heart twice. The double circulatory system allows the blood to be at high blood pressure and so blood can get into the tissues, This is so maximum amount of oxygen can get into cells and waste products can be taken away.
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