Respiration and Circulation Multiple Choice Questions and Answers 8 PDF Download

Respiration and circulation multiple choice questions, learn grade 8 science online test prep 8 for elementary school online courses, distance learning for exam prep. Practice transport in human beings multiple choice questions (MCQs), respiration and circulation quiz questions and answers for science class for 8th grade science problems online free.

Study elementary school science multiple choice questions (MCQs): blood collects oxygen from inhaled air and gives off carbon dioxide in the, for free online courses with choices liver, lungs, kidneys, and heart, transport in human beings quiz with virtual academy portal for online learning of mid term and final exams preparation. Free science study guide for online learning transport in human beings quiz questions to attempt multiple choice questions based test.

MCQs on Respiration and Circulation Worksheets 8 Quiz PDF Download

MCQ: Blood collects oxygen from inhaled air and gives off carbon dioxide in the

  1. lungs
  2. liver
  3. kidneys
  4. heart

A

MCQ: Respiration which takes place in absence of oxygen is called

  1. cellular respiration
  2. aerobic respiration
  3. anaerobic respiration
  4. breathing

C

MCQ: There is higher concentration of oxygen in

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

A

MCQ: Distance which is travelled by an average red blood cell is equal to

  1. 1500km
  2. 1200km
  3. 2100km
  4. 5100km

A

MCQ: Heart is made of specialized

  1. cardiac muscles
  2. connective tissues
  3. both a and b
  4. skeletal sphincters

C