The role of the kidneys in maintaining the proper pH is to maintain the proper amount of:
A. hydroxide ions (OH-) in the blood.
B. carbonic acid (H2CO3) in the blood.
C. bicarbonate ion (HCO3-) in the blood.
D. acid in the blood.
Answer: C
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A. allowing water to penetrate fuels. B. creating a barrier between the fuel and the fire. C. preventing air from reaching the fuel or mixing with vapors. D. lowering the temperature of the fuel and adjacent surfaces.
Perineal care means cleaning:
A. the legs. B. the area between the anus and the posterior part of the external genitalia. C. the axillary region. D. the buttocks.
Which of the following conditions may occur in a dentition with uneven marginal ridges?
A) Food impaction B) Tooth mobility C) Furcation involvement D) Pulpitis
HBV is more likely to spread than HIV because it is stronger and more durable than HIV.
Answer the following statement true (T) or false (F)