Respiration and Circulation Multiple Choice Questions and Answers 1 PDF Book Download

Respiration and circulation multiple choice questions (MCQs), respiration and circulation quiz answers, test prep 1 to learn online elementary school science for Cambridge lower secondary certificate programs. Respiration and breathing MCQs, respiration and circulation quiz questions and answers for distance learning classes. Learn respiration and breathing, transport in human beings test prep for online degree programs.

Learn elementary school science MCQs: respiration and breathing, transport in human beings, with choices plasma, red and blood cells, platelets, and all of them for distance learning classes. Free science study guide for online learning respiration and breathing quiz questions to attempt multiple choice test for online classes.

MCQs on Respiration and Circulation Worksheets 1 PDF Book 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