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Biology 7 Online
OpenStudy (anonymous):

Where does the exchange of oxygen, nutrients, and wastes occur?

OpenStudy (anonymous):

They exchange in the capillaries.The capillaries are the most important part of a closed circulatory system because exchange of nutrient and waste molecules takes place across their thin walls.

OpenStudy (anonymous):

good job again

OpenStudy (anonymous):

Thanks! :D

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