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O Level Biology Quiz e-Book PDF | Mode of action of heart App Download

O Level Biology Learning Guide: Certification Test 1644

Mode of action of heart Quiz App Download & PDF e-Book - 1644

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MCQ: 1644

Backflow of blood into the atria is prevented through

  1. bicuspid valves
  2. tricuspid valves
  3. mitral valve and the chordae tendineae
  4. semi lunar valves

Mode of action of heart Learning Guide: O Level Biology App & eBook Quiz

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Mode of action of heart Quiz App (iOS & Android)

Mode of action of heart Quiz App

O Level Biology Quiz App (Android & iOS)

O Level Biology Quiz App

SAT Biology Quiz App (Android & iOS)

SAT Biology Quiz App

College Biology Quiz App (Android & iOS)

College Biology Quiz App