Histamine is released from which one of the following types of leukocyte to stimulate the inflammatory response?
A) lymphocyte
B) basophil
C) eosinophil
D) neutrophil
E) monocyte
B
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Why is one side of a single water molecule partially negative while the other side is partially positive?
A. Electron pairs are unevenly shared between the oxygen atom and the two hydrogen atoms. B. Electron pairs are unevenly shared between the two hydrogen atoms. C. Hydrogen donates its electrons to oxygen. D. Oxygen donates its electrons to hydrogen.
What color develops when orcinol reacts with starches in a sample?
a. Blue b. Blue-green c. Purple d. Red
The cardiac, pyloric, anal, and ileocecal sphincters are all part of the
a. digestive tract. b. respiratory tract. c. circulatory system. d. muscular system.
Which major digestive process involves nutrient molecules passing across the mucosal layer of the gastrointestinal tract into the blood or lymph?
A) elimination B) absorption C) digestion D) secretion E) mechanical processing and movement