Biology, 03.09.2019 21:10 ynclankaedon
Blood calcium concentration is maintained relatively constant even when calcium intake increases. based on this information, one can conclude that:
a. blood calcium must be needed for the normal function of many cells.
b. the blood calcium concentration must be controlled by the nervous system.
c. there must be a mechanism to detect the concentration of calcium in the blood.
Answers: 1
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