Grade 8 English MCQs

Respiration and Circulation Multiple Choice Questions Test 1 Tests pdf Download

Practice science test 1 on respiration and circulation MCQs, grade 8 respiration and breathing multiple choice questions and answers. Respiration and breathing revision test has science worksheets, answer key with choices as exhale, inhale, digestion and defecate of multiple choice questions (MCQ) with respiration and breathing quiz as the ribs moves upwards and outwards when we for competitive exam prep. Free science study guide to learn respiration and breathing quiz 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