Ethnic differences in skin color are primarily caused by differences in ________.
A. UV radiation exposure
B. the quantity of melanin produced
C. the quantity of hemoglobin carried in the blood
D. the number of melanocytes
E. the number of keratinocytes
Answer: B
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You have a pediatric patient who does not seem to be growing at the same rate as his peers. You test the blood levels of growth hormone and find them to be within the healthy range. What else could be a factor?A) Low thyroid hormone levelsB) Low IGF-1 levelsC) High cortisol levelsD) Low FSH levelsE) All of these
What will be an ideal response?
Factors that alter water balance will also alter electrolyte balance.
Answer the following statement true (T) or false (F)
An increase in the level of carbon dioxide in the blood will
A) decrease the alveolar ventilation rate. B) decrease pulmonary ventilation. C) increase the pH of arterial blood. D) increase the rate of breathing. E) decrease the rate of breathing.
The visceral pericardium, which covers the surface of the heart, is also known as the ________.
Fill in the blank(s) with the appropriate word(s).