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The correct answer is B. because it's true that Capillaries are connected between the arteries and veins and that Pulmonary arteries transport blood low in oxygen from the right ventricle to the lungs. But veins carry blood towards your heart so B isn't true
The lungs need to remain elastic so they can<span> effectively move oxygen into the body and carbon dioxide out of the body</span>
Answer:
they affect our activity levels
Explanation: