The urinary system helps to maintain the

extracellular fluid pH by
a. synthesizing buffers.
b. retaining carbon dioxide in the filtrate.
c. excreting excess hydrogen ions.
d. combining hydrogen ions with urea.
e. signaling the respiratory system to adjust
breathing rate


C

Biology & Microbiology

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a. True b. False

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Which example represents a structural adaptation that an endotherm might make to maintain body temperature?

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