why the human rib is bicephalic
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Because it cannot contract
VishnuRadha:
but the ncert ans. is that is because of it has two articulation surfaces on its dorsal end
but the ncert ans. is that is because of it has two articulation surfaces on its dorsal end
And further my question is how it has two articulation surfaces?
if it has two articulation surfaces on its dorsal end where the two articulation surfaces articulate?
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