Trig functions repeat the same values every ____ degrees.
A. 90
B. 180
C. 240
D. 360
Answer: D
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Which of the following is NOT a type of solution?
A) mousse B) elixir C) foam D) suspension
How do self-antigens that are specific to tissues away from the thymus (like insulin or keratin for example) get in the thymus so that developing T cells that react to them can be deleted?
A. Dendritic cells pick them up in the periphery and carry them to the thymus. B. Specialized macrophages in the thymus filter the bloodstream and present antigens found there to developing T cells. C. A transcription factor, AIRE is expressed in thymic medullary epithelial cells, which allows these cells to express proteins normally found in other tissues. D. They do not get to the thymus, all tissue-specific T cells are deleted in the periphery. E. There are special chaperone proteins that bind to peripheral proteins and carry them to the thymus.
The condition known as ____________________ is an inflammation of the bone marrow and adjacent bone
Fill in the blank(s) with correct word
The increase in cardiac output that occurs during exercise is due to
A. an increase in mean arterial blood pressure only. B. a decrease in vascular resistance only. C. both an increase in mean arterial pressure and a decrease in vascular resistance. D. an increase in heart rate and a decrease in mean arterial blood pressure.