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Bone plays a central role in the regulation of blood levels of

A) potassium.
B) iron.
C) sulfate.
D) calcium.
E) sodium.

User Injecteer
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D) calcium, is where 99% of the body's calcium is stored and makes up most of the inorganic matrix; if blood calcium levels are too high, more bone is made and if blood calcium levels are too low, bone is resorbed.
User Mauriblint
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