Macrophages are cells specialized for ________.
A. secretion
B. phagocytosis
C. transport
D. absorption
E. support
Answer: B
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The pulmonary trunk divides into the right and left pulmonary arteries about ________ centimeters above its origin.
A. 8 B. 12 C. 10 D. 5
What two grooves extend the length of the spinal cord and partially divide it into right and left halves?
A) anterior median fissure and central sulcus B) anterior median fissure and posterior median sulcus C) central sulcus and longitudinal fissure D) longitudinal fissure and posterior median sulcus
________ lacks the capacity to remember a pathogen or react differently to it in the future, whereas ________ utilizes memory cells to adapt to a given pathogen and ward it off more easily in the future.
A. Adaptive immunity; innate immunity B. Innate immunity; cytotoxicity C. Innate immunity; adaptive immunity D. A natural killer cell; a macrophage
The anatomical term superficial means ________
A) farther from the surface B) closer to the surface C) closer to the trunk D) farther from the trunk