Night blindness could be caused by
A. a lack of cones.
B. a lack of iodopsin.
C. a lack of rhodopsin.
D. too much vitamin A in the diet.
E. a lack of vitamin C in the diet.
C
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If left untreated, cataracts can lead to what?
A. Blindness B. Presbyopia C. Myopia D. Hyperopia
Which of the following does NOT contribute to the increase of breathing rate during exercise?
A. Stimulation of the respiratory areas by decreasing blood concentration of oxygen and increasing blood concentration of carbon dioxide B. Stimulation of the respiratory areas by sensory impulses from proprioceptors C. A joint reflex D. Signals from cerebral cortex to skeletal muscles are also sent to the respiratory areas
Filtration is controlled by changing pressure.
Answer the following statement true (T) or false (F)
Diuretics that inhibit Na+ reabsorption are called ________.
A. ADH inhibitors B. thiazide diuretics C. xanthines D. carbonic anhydrase inhibitors E. osmotic diuretics