Examlex
What essential feature is found in the Second American Party System, a political pattern that continues to the present in the United States?
Complement Action
An aspect of the immune system involving a series of proteins that enhance the ability of antibodies and phagocytic cells to clear pathogens from an organism.
Germinal Centers
Areas within lymph nodes where mature B cells rapidly divide, differentiate, and mutate their antibody genes during an immune response.
Lymph Nodes
Small, bean-shaped structures that produce and store cells that help fight infection and disease as part of the lymphatic system.
Lymphocytes
A subclass of white blood cells vital to the immune system, involved in producing antibodies and destroying infected or cancerous cells.
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