Incision into the abdomen is termed:
A) abdomenectomy
B) laparotomy
C) myolitis
D) peritonotomy
E) gastrectomy
B
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CD4 cells recognize processed endogenous antigens.
a. true b. false
What cells decline in number during the final phase of HIV-1 infection, when an individual is said to have AIDS?
A) helper T (TH) cells B) B cells C) plasma cells D) memory B cells
If an obese person loses weight, a factor that increases the risk of regaining the weight is
A) weight loss causes the metabolic rate to slow. B) during weight loss, calories are only temporarily displaced from fat to other tissues. C) brown fat can become white fat if dietary intake increases again. D) the adipose cells do not die but merely shrink, so they can easily store lipid again. E) the body feels unfamiliar after weight loss.
A seesaw is an example of which class of lever?
A. 1st class B. 2nd class C. 3rd class D. not a lever