A fire fighter's first priority should be to take care of ______.
a. himself or herself
b. people affected by the incident
c. the general public
d. the members of his or her company
Answer: a. himself or herself
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When phage ? enters the lytic cycle
A. many new copies of the phage genetic material and coat proteins are assembled to make new phages. The host cell is lysed B. many new copies of the phage genetic material and coat proteins are assembled to make new phages. The host cell remains intact. C. the genetic material of the phage is integrated into the chromosome of the bacterium. D. it immediately lyses the host cells without producing any new viruses.
To detect immunoglobulin M (IgM) antibodies in an acute phase, blood should be collected in _____ days after the onset of infection
a. 2 to 5 b. 5 to 7 c. 7 to 14 d. longer than 21
Which term refers to the process in which an environmental stimulus triggers a response that compensates for changes in the internal/external environment?
a. physiological feedback b. positive feedback c. negative feedback d. anatomical feedback
Which of the following have little value as antiseptics, but are used to mechanically remove microbes?
A. biguanides B. quats C. chlorines D. soaps