Answer :
Final answer:
Antigens and antibodies have distinct roles in the immune system, while the immune response involves a series of steps to defend the body. The immune system comprises various components working together to combat pathogens.
Explanation:
Antigens are substances that can trigger an immune response, while antibodies are proteins produced by the immune system in response to antigens to help neutralize or destroy them.
The immune response is the body's defense mechanism against foreign invaders. It involves the recognition of antigens, activation of immune cells such as T cells and B cells, and the production of antibodies to target and eliminate the invaders.
The main parts of the immune system include the lymphatic system, antigen-presenting cells, T cells, B cells, antibodies, and major histocompatibility complexes, each playing a crucial role in protecting the body from pathogens.
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