Respiration and Circulation Multiple Choice Questions and Answers 1 PDF Download

Respiration and circulation multiple choice questions, learn grade 8 science online test prep 1 for elementary school 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 class 8 online science for students.

Study elementary school science multiple choice questions (MCQs): ribs moves upwards and outwards when we , for free online courses with choices exhale, inhale, digestion, and defecate, respiration and breathing quiz with online tests for distance learning after learning theories from school textbooks. 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 1 Quiz PDF Download

MCQ: Ribs moves upwards and outwards when we

  1. inhale
  2. exhale
  3. digestion
  4. defecate


MCQ: More than half of total blood volume is the

  1. red and blood cells
  2. plasma
  3. platelets
  4. all of them


MCQ: Special organ in mammals, birds and reptiles is

  1. lungs
  2. air sacs
  3. stomata
  4. spiracles


MCQ: Platelets help in blood

  1. producing
  2. rejuvenating
  3. clotting
  4. purifying


MCQ: Circulatory system of human is composed of

  1. heart
  2. blood
  3. blood vessels
  4. all of them