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Class 7 Science MCQs – Certification Test 42

Blood Circulation MCQs (Question 42) – Study App & e-Book Download

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MCQ: 42

The walls of left ventricle are thicker than the walls of right ventricle because

  1. it has to pump blood to the whole body
  2. it has to pump the blood to lungs
  3. blood reaches this ventricle in huge amount
  4. blood reaches this ventricle with extra pressure
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