Final answer:
The human innate immune system cannot produce antibodies; this function belongs to the adaptive immune system. The innate system includes phagocytosis, stimulation of fever, and the release of and response to cytokines.
Step-by-step explanation:
The capacity of the human innate immune system that is NOT included is the production of antibodies. Antibody production is a function of the adaptive immune system, which is activated after the innate immune response and is tailored to the specific pathogen encountered. Innate immunity includes cells and mechanisms that defend the host from infection in a non-specific manner and do not confer long-lasting immunity. This means that the innate response will be the same regardless of the pathogen type.
The innate immune system includes capacities such as phagocytosis of foreign cells, in which phagocytes engulf and destroy pathogens. It also includes the stimulation of fever, which can be a sign of the innate immune system at work, and the release of and response to cytokines, which are signaling proteins that help to regulate the immune response.