O Level Courses

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O Level Biology Quiz - Complete Course

Mode of action of heart Quiz App Download & e-Book PDF - 1372

Apps:

O Level Biology App (Play Store) O Level Biology App (App Store)
MCQ: 1372

Backflow of blood into the ventricle is prevented through

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

O Level Biology App & e-Book Tests PDF Download

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Mode of action of heart Apps (Android & iOS)

Mode of action of heart App

O Level Biology Apps (Android & iOS)

O Level Biology App

10th Grade Biology Apps (Android & iOS)

10th Grade Biology App

SAT Biology Apps (Android & iOS)

SAT Biology App