Question 6 options:
To facilitate the exchange of nutrients, oxygen, and waste between the blood and body tissues
To pump blood back to the heart
To exchange CO2 to oxygen in the lungs
To filter waste from the blood
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The main purpose of the capillaries in the circulatory system is:
To facilitate the exchange of nutrients, oxygen, and waste between the blood and body tissues.
Capillaries are the smallest blood vessels and are where the actual exchange of substances occurs between the blood and surrounding tissues.
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