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

Class 9 Biology MCQs – Certification Test 854

Human Heart MCQs (Question 854) – Study App & e-Book Download

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MCQ 854: The main veins through which deoxygenated blood is received by right atrium are:

  1. right and left tricuspid
  2. upper and lower tricuspid
  3. superior and inferior vena cavae
  4. left and right vena cavae

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