When blood Ca2+ levels fall below normal, in what ways do the kidneys help restore them toward normal?
A. By decreasing 1,25-dihydroxyvitamin D3 formation, increasing tubular phosphate reabsorption, and increasing tubular Ca2+ reabsorption
B. By increasing 1,25-dihydroxyvitamin D3 formation, decreasing tubular phosphate reabsorption, and increasing tubular Ca2+ reabsorption
C. By increasing 1,25-dihydroxyvitamin D3 formation, increasing tubular phosphate reabsorption, and increasing tubular Ca2+ reabsorption
D. By increasing renal secretion of parathyroid hormone and increasing bone resorption
E. Increasing 1,25-dihydroxyvitamin D3 formation and increasing secretion of parathyroid hormone
Answer: B
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A. Parasitic worm infection B. Bacterial infection C. Viral infection D. None of the choices are correct.
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Answer the following statement true (T) or false (F)
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