Which of the following statements about nosocomial infections is FALSE?
A) They occur in compromised patients.
B) They may be caused by opportunists.
C) They may be caused by drug-resistant bacteria.
D) They may be caused by normal microbiota.
E) The patient was infected before hospitalization.
E
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Immunoglobins associate with the adapter molecules Ig? and Ig?
Indicate whether the statement is true or false.
A DNA specimen that contains 30% guanine has ________ thymine.
A. 15% B. 20% C. 30% D. 60% E. The amount of thymine cannot be determined.
Which of the following is a facultative, rather than obligate, intracellular pathogen?
A. Rickettsia B. Brucella C. Chlamydia D. All of the choices are correct.
Which of the following is false about temperature
regulation in mammals? a. Evaporative heat loss increases in dry air. b. Nearly all terrestrial mammals can sweat. c. An average-sized human has 10,000 sweat glands. d. Panting and fur-licking assist evaporative heat loss. e. A body temperature above 105º F is dangerous for humans but is tolerated by dromedary camels.