NK cells kill abnormal cells by secreting ________, which kill the cells by creating large pores in their cell membranes
A) perforates B) perforines C) perforins D) perforations
C
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The blood becomes alkalotic if the pH rises above 7.45.
Answer the following statement true (T) or false (F)
Using a capillary tube, a layer of organism suspension is placed over a layer of Group A Streptococcus antiserum. If the two are homologous, a precipitin ring will appear
A) in the area of postzone. B) in the area of prozone. C) in the zone of equivalence. D) throughout the tube.
Which of the following statements about EHRs is false?
A. The percentage of hospitals using an EHR jumped from 59% to 75% from 2013 to 2014. B. Stage 2 is the minimum level of EHR required in order to be counted as using EHR C. By 2014 50% of physicians in the United States had implemented an EHR, with another 13% in the process of implementing one. D. There were no EHR systems in U.S. hospitals in 2009.
Which of the following strategies helps in dealing with overtraining in athletes?
A. Decreasing the intensity of training but increasing the amount of work B. Gradually increasing the work load to enhance athletes' coping capacity C. Helping athletes assess themselves through regular competition with peers D. Ensuring a short interruption of training over a 3- to 5-day period