Answer:
Oxygen and nutrients from the blood can move through the walls and get into organs and tissues. The capillaries also take waste products away from your tissues. Capillaries are where oxygen and nutrients are exchanged for carbon dioxide and waste.
Explanation:
As the blood moves through a capillary, nutrients, oxygen, and food leave the blood and enter the body cells. The blood also picks up wastes and carbon dioxide. The blood in capillaries works like a mail carrier.
