On the periodic table, beryllium sits above magnesium and to the right of lithium. Given that magnesium has two electrons in its outer shell and lithium has one, how many electrons would you predict beryllium has in its outer shell?
A. One
B. Two
C. Three
D. Four
Answer: B
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Abduction takes place around which axis?
A. anteroposterior B. mediolateral C. longitudinal D. horizontal
Hydrochloric acid is secreted by which of the secretory cells of the stomach?
A) chief cells B) parietal cells C) serous cells D) mucous neck cells
How do epithelial cells obtain their nourishment and get rid of their waste?
A. Through the blood vessels of the underlying connective tissue B. Through small channels in the tissue C. Through their extensive blood vessels D. Through the air in the environment E. By a combination of all of these methods
Compared to mouth-to-mouth ventilation, mouth-to-mask ventilation is more advantageous in that it:
A) can be used in conjunction with supplemental oxygen. B) carries a lower risk of gastric distention and vomiting. C) is less likely to result in hyperventilation of the rescuer. D) allows greater tidal volume to be delivered to the patient.