Question

multiple select question
select all that apply
what are functions of lymph nodes?
filtration of lymph
filtration of blood
site of b and t cell activation
site of b and t cell development

Explanation:

Lymph nodes filter lymph (not blood). They are also a site for B and T cell activation. B and T cell development occurs mainly in bone marrow (for B - cells, partially) and thymus (for T - cells), not in lymph nodes.

Answer:

Filtration of lymph, Site of B and T cell activation.