_____ is a cytokine produced by both macrophages and dendritic cells that promotes the proliferation, differentiation, and survival of NK cells
a. IL-15
b. IL-1eta
c. CXCL8
d. TNF-alpha
e. IL-6.
C,D
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Which of the following statements regarding respiration is FALSE?
A) Oxygen is needed for the body cells' metabolism. B) Carbon dioxide moves from the blood into the cells. C) Oxygen moves from the alveoli into the bloodstream. D) Carbon dioxide is the by-product of metabolism.
Which diagnostic test would be beneficial to rule out ectopic ACTH-secreting tumors in the body?
1. Chest x-ray 2. Octreotide scintigraphy 3. Contrast-enhanced MRI 4. Abdominal CT scan
Amphetamines appear to have a positive effect on exercise performance in those who are alert and motivated.
Answer the following statement true (T) or false (F)
Tiny vessels are known as?
A. vasculi B. aorta C. angio D. capillaries E. None of these