Respiration and Circulation Multiple Choice Questions and Answers 6 PDF Download

Learn respiration and circulation multiple choice questions, grade 8 science online test 6 for elementary school degree online courses, distance learning for exam prep. Practice respiration and breathing multiple choice questions (MCQs), respiration and circulation quiz questions and answers for science class for science help for competitive exams.

Study elementary school science multiple choice questions (MCQs): small air sacs which are present at end are called, for free online courses with choices alveoli, trachea, nostril, and bronchi, respiration and breathing quiz with online question bank from science projects and science notes to prepare for final exams. Free science study guide for online learning respiration and breathing quiz questions to attempt multiple choice questions based test.

MCQs on Respiration and Circulation Worksheets 6 Quiz PDF Download

MCQ: Small air sacs which are present at end are called

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

B

MCQ: Number of chambers in a heart is

  1. 2
  2. 3
  3. 4
  4. 1

C

MCQ: A long wind pipe in which air enters when we breath is called

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

A

MCQ: Upper small chambers are called as

  1. atria
  2. ventricle
  3. systole
  4. diastole

A

MCQ: Protein which is red in color and present in blood is called

  1. hemoglobin
  2. red cells
  3. platelets
  4. iron cells

A