Class 9 Courses

Human Heart Study App Download - Class 9 Biology Apps (Android & iOS)

Class 9 Biology MCQs - Complete Course

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

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