Respiration and Circulation Multiple Choice Questions and Answers 1 PDF Download

Learn respiration and circulation multiple choice questions, grade 8 science test 1 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 class 8 online science for students.

Study elementary school science multiple choice questions (MCQs): ribs moves upwards and outwards when we with options 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

A

MCQ: More than half of total blood volume is the

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

B

MCQ: Special organ in mammals, birds and reptiles is

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

A

MCQ: Platelets help in blood

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

C

MCQ: Circulatory system of human is composed of

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

D