_______ is the most abundant ion in the body important for blood coagulation, neurotransmitter release, muscle tone, and excitability of nerves and muscles.

_______ is the most abundant ion in the body important for blood coagulation, neurotransmitter release, muscle tone, and excitability of nerves and muscles.




A. sodium
B. chloride
C. potassium
D. calcium




Answer: D


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