Vitamin D causes the parathyroid to inhibit new PTH synthesis.
a. true
b. false
Answer: a. true
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The karyotype of a young patient shows two Barr bodies per cell. What condition might this child have?
A. Turner syndrome B. Triple X syndrome C. Down syndrome D. Klinefelter syndrome E. This child is a normal female.
Four of the five choices listed below are types of
selection exhibited by nature. Select the exception. a. artificial b. disruptive c. stabilizing d. directional e. sexual
Which of these is an agent that is used to sterilize the plastic tubing of heart-lung machines?
A. Phenol B. Ethylene oxide C. Mercaptoethanol D. 70% ethanol
On a daily basis what percentage of the water the kidneys filter is excreted in urine?
a. 1 percent b. 10 percent c. 20 percent d. 50 percent e. 100 percent