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Per NCERT, why is the RIB CAGE flexible — and what advantage does this give?
ATo trap heat
BTo allow ribs to fall off
CRibs attach to the sternum via cartilage — flexibility allows the chest to expand/contract during breathing
DTo slow down circulation
Answer & Solution
Correct answer: C. Ribs attach to the sternum via cartilage — flexibility allows the chest to expand/contract during breathing
Per NCERT §3.6, flexible cartilage attachment allows ribcage expansion for breathing. The other options misstate.
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