Class 8 Science MCQs - Chapter 9

Respiration and Circulation Multiple Choice Questions (MCQs) PDF Download - 1

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The Multiple Choice Question (MCQ Quiz): Ribs moves upwards and outwards when we; "Respiration and Circulation" App Download (Free) with answers exhale, inhale, digestion and defecate to learn online courses. Solve respiration and breathing quiz questions, download Google eBook (Free Sample) for online classes.

Respiration and Circulation Questions & Answers PDF Download: MCQ Quiz 1

MCQ 1: The ribs moves upwards and outwards when we

inhale
exhale
digestion
defecate

MCQ 2: More than half of total blood volume is the

red and blood cells
plasma
platelets
all of them

MCQ 3: The special organ in mammals, birds and reptiles is

lungs
air sacs
stomata
spiracles

MCQ 4: Platelets help in blood

producing
rejuvenating
clotting
purifying

MCQ 5: The circulatory system of human is composed of

heart
blood
blood vessels
all of them

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Respiration and Circulation MCQs

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