Respiration and Circulation Multiple Choice Questions Test 1 pdf Download

Practice science quiz 1 on respiration and circulation MCQs, grade 8 respiration and breathing multiple choice questions. Free learning guide has science worksheet with answering options exhale, inhale, digestion and defecate of multiple choice questions (MCQ) with respiration and breathing quiz as ribs moves upwards and outwards when we for exam prep. Study to learn respiration and breathing quiz to attempt multiple choice questions based test.

MCQs on Respiration and Circulation - Quiz 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