Download Class 9 Biology Trivia App | Human Heart Trivia e-Book PDF | 1397
Class 9 Biology MCQs (Grade 9) From Textbook

Class 9 Biology MCQs – Certification Test 1397

Human Heart Trivia (Question 1397) – App & e-Book Download

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MCQ 1397: The valve which guards the opening between the left ventricle and left atrium is known as:

  1. bicuspid atria
  2. tricuspid valve
  3. bicuspid valve
  4. tricuspid atria
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