Which of the following statements is true?
A) In muscle contraction, the roles of calcium and magnesium are antagonistic, with calcium promoting the process and magnesium being the inhibitor.
B) Magnesium promotes phosphorus absorption.
C) Calcium and magnesium promote each other's reabsorption in the kidney.
D) Calcium may cause an alteration in magnesium distribution by changing the flux of magnesium across the cell membrane or displacing it on its binding sites.
Correct Answer:
Verified
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