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__ sturcture is present in it so taht pathway of air does not step in throatA. rings of boneB.rings of cartilageC. structure of bonesD. structure of cartilege

Answer» __ sturcture is present in it so taht pathway of air does not step in throat
A. rings of bone
B.rings of cartilage
C. structure of bones
D. structure of cartilege


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