Final answer:
The body has different responses to an antigen attack associated with four different systems: innate immune system, adaptive immune system, lymphatic system, and integumentary system.
Step-by-step explanation:
The body has different responses to an antigen attack that are associated with different systems:
- Innate immune system (A): This system is responsible for phagocytosis of antigens by macrophages.
- Adaptive immune system (D): This system produces antibodies against the antigen.
- Lymphatic system (C): This system drains fluid containing antigens through the capillaries.
- Integumentary system (B): This system provides a protective barrier covering internal organs.