What accounts for the change in PO2 between the atmosphere and alveoli?
I. Water vapor pressure in alveolar gas
II. PCO2 is higher in alveolus than in the atmospheric gas
III. Higher percentage of N2 in alveolar gas
IV. PB is lower in the alveoli than in the atmosphere
a. I, II and IV only c. I and II only
b. I and IVonly d. I, II, III, and IV
c. I and II only
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In which of the following locations would you find a firewall in an automobile?
A) Between the cargo area and the passenger compartment B) Between the A post and B post C) Between the engine compartment and the passenger compartment D) In the middle layer of safety glass
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Twelve and one-half ounces are equivalent to ________ milliliters
What will be an ideal response?
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