An instrument that measures lung volumes is a
(a) caliper.
(b) spirometer.
(c) barometer.
(d) stethoscope.
(b) spirometer.
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Sometimes after you have been exercising very hard your muscles ache due to the build up of lactic acid. Lactid acid has build up in your muscles because
A. Glucose is being broken down in the absence of oxygen B. Your muscles are burning fat for energy C. Glucose is being broken down in the presence of oxygen D. Your heart is pumping very fast and delivering more oxygen to your muscles than they can handle
What is the genetic makeup of an individual who has inherited Jacobs syndrome?
A. XXX B. XYY C. XXY D. XO E. none of these
Four of the five answers listed below are heterotrophic. Select the exception
a. consumers b. carnivores c. herbivores d. parasites e. producers
In an immunodiffusion test to diagnose the fungal disease histoplasmosis, a patient's serum is placed in a well in an agar plate. In a positive test, a precipitate forms as the serum diffuses from the well and meets material diffusing from a second well. In this test process, what is the most likely identity of the material in the second well?
A) antibodies B) a purified fungal antigen C) entire fungal cells D) a purified protozoan antigen E) red blood cells