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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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Asphyxiation
opening in exoskeleton of insects
Alveoli are the involved
disease of pleural membrane of lungs
each cells of body are involved
Aids in production of voice
comprises of brain and spinal cord
Respiration
protective layer around lungs is known as pleura
Rise in conc of gas human expires
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