Respiration and Breathing MCQs Quiz Worksheet PDF Download
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MCQs on Respiration and Breathing Quiz PDF Download
MCQ: Ribs moves upwards and outwards when we
MCQ: Special organ in mammals, birds and reptiles is
- air sacs
MCQ: There is surrounding of rich capillaries around
MCQ: Insects breath through small holes in their body called
- air sacs
MCQ: External part of nose through which air enters is called