Respiration and Circulation Multiple Choice Questions and Answers 3 PDF Download
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MCQs on Respiration and Circulation Worksheets 3 Quiz PDF Download
MCQ: Larger blood vessels which carry blood back to heart are
MCQ: Insects breath through small holes in their body called
- air sacs
MCQ: External part of nose through which air enters is called
MCQ: Air which we breath in is called
- inhaled air
- exhaled air
- circulated air
- deoxygenated air
MCQ: Blood is mixture of
- red and blood cells
- all of them