ICSE /Class 9
Biology MCQ Based On Respiratory system
Our free online Biology test quiz for Class 9, ICSE will assist you to improve your Biology skills on every concept in a fun interactive way.
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ICSE Class 9 Biology Respiratory system
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Water is concerned
comprises of brain and spinal cord
physical process
Muscles that regulate the functioning of lungs
each cells of body are involved
Can happen due to allergy and pollution
disease of pleural membrane of lungs
set of rings are involved
Alveoli are the involved
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