Question 75 The thymus gland stimulates lymphocytes to become B cells. True False

1.Label the following figure that shows the sequence of events by which cytotoxic T cells destroy virus-infected cells.

Immature B cells arriving in the spleen turn over rapidly and require cytokines and positive signals through the B-cell receptor for maturation and long-term survival.  Marginal zone B cells are thought to represent a lineage of cells important in rapid responses to blood-borne antigens. What are the two characteristics of these cells that indicate this function?

I need help explaining the function(s) of the following cells and chemicals and relate to how are they  stimulated (triggering) and help eliminate antigens