A. 6
B. 12
C. 24
D. 32 » Read More…
Major contribution in inhalation by:
A. Diaphragm
B. Intercoastal muscles
C. Sternum
D. None of these
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A. Diaphragm
B. Intercoastal muscles
C. Sternum
D. None of these
A. Support
B. Keep passage open
C. Prevent collapsing
D. All of the above
A. Bronchi
B. Bronchioles
C. Air sacs
D. All of these
A. Living Organism
B. Non-Living Organism
C. Both a and b
D. None of them
A. 5 – 21 days
B. 21 – 50
C. 50 – 120 days
D. 80 – 1 50 days
» Read More…