Download Class 9 Biology Learning App – Human Heart e-Book PDF

Class 9 Biology MCQs (Grade 9) From Textbook

Class 9 Biology MCQs – Certification Test 155

Human Heart MCQ (Question 155) – Learning App & e-Book Download

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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

Human Heart MCQ App & e-Book – Class 9 Biology Exam Prep

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Download the 9th Grade Biology MCQ App – Free Android & iOS Apps

9th Grade Biology MCQ App

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O Level Biology MCQ App

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Zoology MCQ App