Vitamin D causes the parathyroid to inhibit new PTH synthesis.

a. true
b. false


Answer: a. true

Biology & Microbiology

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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.

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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

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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

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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

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