Question

In which part of the circulatory system do body tissues exchange oxygen and carbon dioxide with the blood?

1. the heart
2. the arteries
3. the veins
4. the lungs
5. the capillaries

Answer 1

5. the capillaries

Step-by-step explanation:

Capillaries: These blood vessels connect very small arteries (arterioles) and veins (venules). Capillaries have thin walls that allow oxygen, carbon dioxide, nutrients and waste products to pass into and out of cells