Respiration and Circulation Multiple Choice Questions 9 PDF Download

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Science multiple choice questions (MCQ) on human beings have specialized structure to carry out exchange of gases called with options digestion system, respiratory system, nervous system and circulatory system, respiration and breathing quiz for competitive exam prep, viva interview questions with answers key. Free science study guide to learn respiration and breathing quiz to attempt multiple choice questions based test.

MCQs on Respiration and Circulation Quiz PDF Download Worksheets 9

MCQ. Human beings have specialized structure to carry out exchange of gases called

  1. respiratory system
  2. digestion system
  3. nervous system
  4. circulatory system

A

MCQ. Blood which is oxygenated in lungs is carried to heart by

  1. pulmonary veins
  2. carotid veins
  3. aorta
  4. jugular vein

A