The Appendix contains tables of the normal physiological values regarding dissolved materials in various body fluids. Most of these values are listed as ranges, rather than averages. Why?
A) Each individual person only has one number at any given time.
B) Young people have the lower values and the elderly have the higher values.
C) Homeostatic control is not precise, and normal ranges are not fixed with absolute values.
D) The lower number of the range represents healthy, normal conditions and the higher number of the range represents disease values.
E) Young people have the higher values and the elderly have the lower values.
Answer: C
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