Respiration and Circulation Multiple Choice Questions 1 PDF Download

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

Science multiple choice questions (MCQ) on ribs moves upwards and outwards when we with options exhale, inhale, digestion and defecate, respiration and breathing quiz for competitive exam prep, viva 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. The 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. The 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. The circulatory system of human is composed of

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

D