Download O Level Biology MCQ App | Circulatory system MCQ e-Book PDF | 15
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O Level Biology MCQs – Certification Test 15

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MCQ 15: Pulmonary veins carry:

  1. red oxygenated blood
  2. bluish red deoxygenated blood
  3. deoxygenated blood from heart to the lungs
  4. oxygenated blood from lungs to heart

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