Holy hell. You are really struggling.By the way. Common parlance.
What is the difference between primary and secondary immune system?
Memory B and T-cells are antigen-specific and, on encountering the antigen again, can mount a more rapid and effective immune response, known as the secondary immune response.
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Overview of Immune Responses.
Primary immune response Secondary immune response Responding cells Naïve B and T cells Memory B and T cells
Its a primary immune response. Not system
Jesus Christ! get it together
The primary and secondary immune RESPONSE is part of the adaptive immune SYSTEM.
Outside of weddings I have not stepped foot in a church since I was 15 or 16 but I am going to say a prayer for you. You are obviously suffering from some degree of cognitive decline.