Which of the following are considered reservoirs of infection?
A) carriers
B) contaminated food and drinking water
C) rabid animals
D) all of the above
D) all of the above
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On a field trip, you observe red, tubular flowers along the trail. You will expect them to be pollinated by
A. bees. B. hummingbirds. C. moths. D. beetles. E. bats.
The most dangerous type of arrhythmia is
a. tachycardia. b. ventricular fibrillation. c. brachycardia. d. atrial fibrillation. e. an electrocardiogram
All eicosanoids are synthesized from
a. cholesterol. b. arachidonic acid. c. prostaglandin. d. thromboxane A.
In humans, the transport epithelial cells in the ascending loop of Henle _____
A) are the largest epithelial cells in the body B) are not in contact with interstitial fluid C) have plasma membranes of low permeability to water D) are not affected by high levels of nitrogenous wastes