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O Level Biology MCQ App Download | Heart: O Level Biology e-Book PDF

O Level Biology Entrance Tests: Certification Test 207

Heart: O Level Biology MCQ App Download & PDF e-Book - 207

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MCQ: 207

Blood in pulmonary arteries is at a lower pressure than blood in aorta allowing

  1. tricuspid valve to shut
  2. bicuspid valve to shut
  3. gaseous exchange to effectively take place in lungs
  4. semi lunar valves to prevent backflow of blood

Heart: O Level Biology Textbook Tests: O Level Biology App & eBook MCQ

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Heart O Level Biology MCQ App (iOS & Android)

Heart O Level Biology MCQ App

O Level Biology MCQ App (Android & iOS)

O Level Biology MCQ App

A level Biology MCQ App (Android & iOS)

A level Biology MCQ App

Cell Biology MCQ App (Android & iOS)

Cell Biology MCQ App