Question

what are bone made up of ?
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Answer 1

Answer:

calcium....................

Answer 2

Answer:

Bone matrix is made up of Calcium salts.

Explanation:

Collagen is a protein that provides a soft framework, and calcium phosphate is a mineral that adds strength and hardens the framework.

This combination of collagen and calcium makes bone strong and flexible enough to withstand stress.

Made mostly of collagen, bone is living, growing tissue.

Hope it helps! :D