Each of the Following Is True of the Calcium-To-Phosphorus Ratio

Multiple Choice

Each of the following is true of the calcium-to-phosphorus ratio except one. Which one is the exception?

A) Serum (blood) calcium is relatively constant.
B) Each cell has a vital need for calcium.
C) Calcium imbalance occurs when calcium withdrawal from bones exceed deposits.
D) Decreased bone density caused by insufficient calcium occurs rapidly.