You are standing outside in the winter. There is no wind, but the temperature is 20 degrees Fahrenheit, and you are not wearing a hat. You are losing body heat by which one of the following principles?
A) Conduction
B) Radiation
C) Convection
D) Evaporation
B
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Gas leaving an unheated humidifier at 10° C and 100% relative humidity (absolute humidity = 9.4 mg/L) would provide what relative humidity at body temperature?
a. Approximately 100% b. Approximately 60% c. Approximately 40% d. Approximately 20%
Which of the following is the measuring principle used in automated urinalysis systems to estimate the amount of a substance in urine samples using urine strips or "sticks"?
A) Reflectance photometry B) Refractive index C) Osmometry D) Absorbance spectroscopy
Genetic manipulation is an area under investigation for the treatment of diabetes. One genetic focus is using ____ to produce insulin for use in persons with Type 1 diabetes mellitus.
A. non-beta cells B. beta cells C. alpha cells D. non-alpha cells
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