Multiple choice

______ carry impure blood to the lungs to get more oxygen.

  1. Veins

  2. Arteries

  3. Capillaries

  4. Auricles
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A Correct answer
Explanation

Veins carry blood toward the heart. After body cells use oxygen, blood becomes deoxygenated (impure) and returns through veins to the right side of the heart, which then pumps it to the lungs via pulmonary arteries. The key distinction is that veins carry blood back to the heart regardless of oxygenation level.

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