Which of the following cells plays a key role in nonspecific immunity?
A) T cells B) plasma cells C) natural killer cells D) B cells
C
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Which substance is almost entirely water, helps transport protein back to the bloodstream, and is important in the absorption of fats?
A. sweat B. blood C. lymph fluid D. amniotic fluid
You have a high risk of developing traveler's diarrhea when you visit ________.
A. New York City, New York B. Sydney, Australia C. Paris, France D. Calcutta, India
The effects of malnutrition during the critical period of development of each organ and tissue type are:
a. irreversible. b. most often lethal. c. minimal to the development of the fetus because of the priority for nutrition established by the fetus. d. reversed only with subsequent improved and adequate nutrition during the remaining gestation.
Lipids that consists of two fatty acids and a phosphate group attached to a glycerol backbone are called
A) diglycerides. B) phospholipids. C) triglycerides. D) monglycerides.