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Class 9 Biology MCQs: App Download (Free Android iOS) & e-Book

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Human Heart MCQs App Download & e-Book PDF - 155

MCQ: 155

The oxygenated blood is brought to left atrium from lungs through

  1. pulmonary veins
  2. pericardial veins
  3. pericardium veins
  4. semi lunar veins

Class 9 Biology App & e-Book Tests PDF Download

Human Heart Study App: Free Download iOS & Android

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Human Heart  MCQs Apps (Android & iOS)

Human Heart MCQs App

9th Grade Biology  MCQs Apps (Android & iOS)

9th Grade Biology MCQs App

Molecular Biology  MCQs Apps (Android & iOS)

Molecular Biology MCQs App

College Biology  MCQs Apps (Android & iOS)

College Biology MCQs App