Here's why:
* Adaptive immunity is characterized by its ability to specifically target and eliminate pathogens. It involves the recognition of specific antigens (molecules on pathogens) and the development of a targeted immune response. This response often involves the production of antibodies and the activation of specialized immune cells like T lymphocytes.
* Innate immunity, the other major category of immunity, provides a general, non-specific defense against pathogens. It relies on mechanisms like physical barriers (skin), chemical defenses (stomach acid), and innate immune cells like macrophages and neutrophils.
Therefore, adaptive immunity is the only type of immunity that is specific to particular pathogens and develops over time, making it a distinct category.
