What term describes the ability of an organism to resist infections or toxins by the action of specific antibodies or white blood cells?

The term that best describes the ability of an organism to resist infections or toxins through the action of specific antibodies or white blood cells is immunity. Immunity encompasses the entire range of biological processes that provide protection against pathogens, including the production of antibodies by B cells and the action of various types of white blood cells such as T cells. These responses can be either innate (non-specific) or adaptive (specific to particular pathogens), but the overall concept of immunity refers to the organism's capacity to defend itself against pathogens and toxins. This protection can be developed through past infections or vaccinations, leading to a robust defense system against future encounters with the same pathogens.