Respiration and Circulation Multiple Choice Questions and Answers 9 PDF Download

Learn respiration and circulation multiple choice questions, grade 8 science online test 9 for elementary school degree online courses, distance learning for exam prep. Practice respiration and breathing multiple choice questions (MCQs), respiration and circulation quiz questions and answers for science class for 8th grade science practice test online.

Study elementary school science multiple choice questions (MCQs): human beings have specialized structure to carry out exchange of gases called, for free online courses with choices digestion system, respiratory system, nervous system, and circulatory system, respiration and breathing quiz to improve study tips by practicing old exams an with interactive trivia questions and answers. Free science study guide for online learning respiration and breathing quiz questions to attempt multiple choice questions based test.

MCQs on Respiration and Circulation Worksheets 9 Quiz PDF Download

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


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

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