The urinary system helps to maintain the extracellular fluid pH by

a. synthesizing buffers.
b. retaining carbon dioxide in the filtrate.
c. excreting hydrogen ions as water.
d. combining hydrogen ions with urea.
e. joining hydrogen ions with bicarbonate.


C

Biology & Microbiology

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The common bile duct delivers bile from the _____to the______.

Fill in the blank(s) with the appropriate word(s).

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