Answer:
The exogenous pathway occurs when MHC class II molecules present fragments derived from extracellular (exogenous) proteins that are located within the cell. First, pathogens are phagocytized, then endosomes within the cell break down antigens with proteases, which then combine with MHC II.
Explanation:
The meaning of life, or the answer to the question "What is the meaning of life<span>?", pertains to the significance of living or existence in general.
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Answer:
true
Explanation:
The can be pressure which leads to stress
