Respiration and Circulation Multiple Choice Questions Online 1 PDF eBook Download

Learn Respiration and Circulation Multiple Choice Questions & Answers (MCQs), respiration and circulation quiz answers pdf, test prep 1 to study elementary school science for online degree courses. Practice "Respiration and Breathing" MCQs, respiration and circulation quiz questions and answers for distance learning classes. Learn respiration and breathing, transport in human beings test prep for online degree programs.

Practice respiration and circulation MCQ: Ribs moves upwards and outwards when we, with choices exhale, inhale, digestion, and defecate for distance learning classes. Free science study guide for online learning Respiration and Breathing Quiz Questions for online classes.

Respiration and Circulation MCQs Quiz 1 PDF eBook 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