Class 8 Science Study App | Respiration and Circulation Quiz e-Book PDF

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Class 8 Science MCQs – Practice Test 7 (Chapter 9)

Respiration and Circulation Quiz with Answers PDF Download – Test 7

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Learn Respiration and circulation Quiz Questions and Answers PDF (Respiration and Circulation Quiz PDF e-Book) download Ch. 9-7 to learn Class 8 Science Course. Solve Transport in Human Beings MCQs PDF, Respiration and Circulation Quiz Questions and Answers for science school performance support. Free Class 8 Science Study App Download: Respiration and Circulation Quiz App to learn transport in human beings, respiration and breathing test prep for science knowledge building systems.

Free "Class 8 Science" App (iOS & Android) with MCQ: Composition of red blood cells have specialized protein called; with answers: chlorophyll, iron, copper, and silver for science school performance support. Study Transport in Human Beings MCQ Questions, download Google Book (Free Chapter) to maximize school performance.

Respiration and Circulation Quiz – Practice Test 7 PDF Download

MCQ 31: The composition of red blood cells have specialized protein called:

  1. iron
  2. chlorophyll
  3. copper
  4. silver

MCQ 32: The transport system of blood by special organ heart constitutes:

  1. circulatory system
  2. respiratory system
  3. digestion system
  4. nervous system

MCQ 33: The life span of red blood cells is:

  1. 2 months
  2. 45 days
  3. 4 months
  4. 12 days

MCQ 34: Exhaled air is the air which we:

  1. breath in
  2. breath out
  3. transport in body
  4. use under water

MCQ 35: The division of windpipe is done in two:

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

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Respiration and Circulation MCQs

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