Question

Adaptive immunity is based upon ________. having exhausted all options for innate immunity responses traits common to groups of pathogens antigen-specific recognition maternal provision of antibodies to offspring plants being exposed to new pathogens

Answer 1

Adaptive immunity is based upon antigen-specific recognition. Unlike innate immunity, which provides immediate and general defense mechanisms against pathogens, adaptive immunity relies on the recognition of specific antigens present on pathogens. This recognition triggers a tailored immune response, including the production of antigen-specific antibodies and activation of specific immune cells, to eliminate the pathogen. Adaptive immunity is characterized by its ability to "adapt" and develop memory responses, providing long-term protection against previously encountered pathogens.