Respiration and Circulation Multiple Choice Questions and Answers 1 PDF Online Download

Respiration and circulation Multiple Choice Questions (MCQs), respiration and circulation quiz answers, test prep 1 to learn elementary school science for online certificate programs. 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.

Learn science MCQs: 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 Online 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