Final answer:
Immunocompetent B and T cells seed the area of lymphoid follicles, which are the sites of lymphocyte formation. B cell maturation occurs in the bone marrow, while naive T cells mature in the thymus. They then migrate to secondary lymphoid organs like the spleen and lymph nodes.
Step-by-step explanation:
Immunocompetent B and T cells seed the area of lymphoid follicles, which are the sites of lymphocyte formation. These follicles have specific B cell-rich and T cell-rich areas.
B cell maturation occurs in the bone marrow, while naive T cells migrate from the bone marrow to the thymus for maturation.
Once mature, B and T cells migrate to secondary lymphoid organs like the spleen and lymph nodes.