Respiration and Circulation Multiple Choice Questions 3 PDF Download

Practice respiration and circulation MCQs, grade 8 online science test 3, transport in human beings multiple choice questions and answers. Transport in human beings revision test has science worksheets, helping answer key with choices as veins, arteries, valves and capillaries of multiple choice questions (MCQ) with transport in human beings quiz as the larger blood vessels which carry blood back to heart are for competitive exam prep, viva interview questions. Free science study guide to practice transport in human beings quiz to attempt multiple choice questions based test.

MCQs on Respiration and Circulation Quiz PDF Download Worksheets 3

MCQ. The larger blood vessels which carry blood back to heart are

  1. arteries
  2. veins
  3. valves
  4. capillaries


MCQ. Insects breath through small holes in their body called

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


MCQ. The external part of nose through which air enters is called

  1. trachea
  2. alveoli
  3. nostril
  4. bronchi


MCQ. The air which we breath in is called

  1. inhaled air
  2. exhaled air
  3. circulated air
  4. deoxygenated air


MCQ. The blood is mixture of

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