Respiration and Circulation Multiple Choice Questions 1 PDF Download

Learn respiration and circulation MCQs, grade 8 science test 1 for learning online courses and test prep, respiration and breathing multiple choice questions and answers. Respiration and breathing revision test includes science worksheets to learn for class 8 online science for students.

Science multiple choice questions (MCQ) on ribs moves upwards and outwards when we with choices exhale, inhale, digestion and defecate, respiration and breathing quiz for competitive exam prep, summative and formative assessment 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 1

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