Human Heart Learning App | Class 9 Biology MCQ e-Book PDF
Class 9 Biology MCQs (Grade 9) From Textbook

Class 9 Biology MCQs – Certification Test 1171

Human Heart MCQ (Question 1171) – Learning App & e-Book Download

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MCQ 1171: After the contraction of the left ventricle, the oxygenated blood is pumped in:

  1. ventricle
  2. aorta
  3. atria
  4. semi lunar valve

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