An Organism Maintaining Homeostasis with Respect to Sodium Ion Concentration

Multiple Choice

An organism maintaining homeostasis with respect to sodium ion concentration in the blood would ______sodium excretion in the kidneys when sodium levels were low and ______ sodium excretion when sodium levels were high.

A) maintain constant; maintain constant
B) increase; maintain constant
C) increase; decrease
D) decrease; maintain constant
E) decrease; increase