Cells of the immune system capable of phagocytosis include:
A. macrophages, NK cells, and basophils.
B. B cells, T cells, and macrophages.
C. monocytes, neutrophils, and plasma cells.
D. macrophages, neutrophils, and dendritic cells.
E. macrophages, mast cells, and lymphocytes.
D
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The blood vessels that directly supply the spinal cord are found in the
A) epidural space. B) pia mater. C) subarachnoid space. D) dura mater. E) arachnoid mater.
Gene silencing may be accomplished by ________.
A. genetic recombination B. removal of the gene C. methylation of cytosine bases in DNA D. crossing over
What controls the release of corticoids from the adrenal cortex?
A. ACTH from the anterior pituitary B. Higher brain centers C. CRH from the hypothalamus D. All of the choices are correct.
Which of the following does not enhance the absorptive effectiveness of the small intestine?
A) circular folds B) villi C) microvilli D) intestinal movements E) cilia