Answer:
278
Explanation:
Because How Many Is A Keyword
The answer is: "2A" or "IIA" or "2" or "II";
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In which "II" stands for the Roman numeral representing the number: "2 (two)".
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Neither matter or energy is created or destroyed, it is simply reused.
Explanation:
Cell-mediated immunity is primarily driven by mature T cells, macrophages, and the release of cytokines in response to an antigen. T cells involved in cell-mediated immunity rely on antigen-presenting cells that contain membrane-bound MHC class I proteins in order to recognize intracellular target antigens.
