The answer is a. The arteries are red and transfer blood to the heart. Veins are blue and transfer blood away from the heart and to all of the different parts of the body. The capillaries are in-between the veins and arteries and provide blood to cells.
Veins transfer oxygen-depleted blood away from the heart, arteries transfer oxygen-rich blood to the heart, and capillaries provide blood to individual cells in the circulatory system. ;
The circulatory system consists of arteries that carry oxygen-rich blood away from the heart, veins that return oxygen-depleted blood back to the heart, and capillaries that facilitate gas and nutrient exchange at the cellular level. The correct answer is option A. Each component has a specific role in maintaining efficient blood circulation and supporting bodily functions.
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