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Class 8 Science MCQs – Practice Test 9 (Chapter 9)

Respiration and Circulation MCQs with Answers PDF Download – Test 9

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Learn Respiration and circulation Multiple Choice Questions (MCQs) with Answers PDF (Respiration and Circulation MCQs PDF e-Book) download Ch. 9-9 to study Class 8 Science Course. Learn Respiration and Circulation Quiz Questions and Answers for science virtual lab simulations. Free Respiration and Circulation MCQs App: Download the Class 8 Science Study App to respiration and breathing, transport in human beings test prep for science digital tutoring systems.

Free "Respiration and Circulation MCQs" App Download with MCQ: Human beings have specialized structure to carry out exchange of gases called; with answers: digestion system, respiratory system, nervous system, and circulatory system for science virtual lab simulations. Solve Respiration and Breathing MCQ Questions, download Google e-Book (Free Chapter) to study experiments online.

Respiration and Circulation MCQs – Practice Test 9 PDF Download

MCQ 41: Human beings have specialized structure to carry out exchange of gases called:

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

MCQ 42: The blood which is oxygenated in lungs is carried to heart by:

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

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