Respiration and Circulation Multiple Choice Questions and Answers 3 PDF Book Download

Respiration and circulation MCQs, respiration and circulation quiz answers 3 to learn elementary education online courses. Practice transport in human beings multiple choice questions (MCQs), respiration and circulation quiz questions and answers for science class. Free e-learning tutorial on transport in human beings, respiration and breathing test prep for elementary school teaching certification.

Study elementary school science multiple choice questions (MCQs): transport in human beings, respiration and breathing, with choices air sacs, lungs, stomata, and spiracles for online elementary education degree. Free science study guide for online learning transport in human beings quiz questions to attempt multiple choice questions based test.

MCQ on Respiration and Circulation Worksheets 3 PDF Book Download

MCQ: 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: External part of nose through which air enters is called

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


MCQ: Air which we breath in is called

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


MCQ: Blood is mixture of

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