When the pH of the extracellular fluid drops, the kidneys A) ...

[piesebel]

When the pH of the extracellular fluid drops, the kidneys
 A) excrete more hydrogen ions.
  B) excrete more bicarbonate ions.
  C) excrete fewer bicarbonate ions.
  D) secrete more hydrogen ions and more bicarbonate ions.
  E) secrete more hydrogen ions and fewer bicarbonate ions.

Question 2

Depolarization of the atria corresponds to the EKG's
 A) P wave.
  B) QRS complex.
  C) QT interval.
  D) T wave.
  E) S-T segment.

[aham8f]

Answer to Question 1

E

Answer to Question 2

A

[piesebel]

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