skeleton kin kin chizo ka ho sakta h
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Made mostly of collagen, bone is living, growing tissue. Collagen is a protein that provides a soft framework, and calcium phosphate is a mineral that adds strength and hardens the framework. This combination ofcollagen and calcium makes bone strong and flexible enough to withstand stress.
01aaradhya:
and what about chitin??
insects have exoskeleton made of chitin na??
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Bones and cartilage ^_^
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