Final answer:
Passive immunity provides temporary protection against antigens through the transfer of antibodies from one individual to another, without requiring an active immune response from the recipient.
Step-by-step explanation:
Protection from antigens due to passive immunity involves the transfer of antibodies from one individual to another, which provides temporary protection against pathogens. Naturally acquired passive immunity occurs when IgG is transferred from the mother to the fetus across the placenta or when a newborn ingests IgA through breast milk. Artificially acquired passive immunity, on the other hand, may involve injections of antibodies, such as immunoglobulins, to provide rapid protection after potential exposure to pathogens. This form of immunity is immediate but does not last long as it lacks the development of immunological memory.
Passive immunity is the transfer of antibodies from one individual to another to provide temporary protection. It can be acquired naturally through the placenta or breast milk, or artificially through injections of immunoglobulins. Passive immunity provides immediate protection but does not develop immunological memory.