IMMUNOLOGY

Detailed explanation-1: -Active Immunity results when exposure to a disease organism triggers the immune system to produce antibodies to that disease. Active immunity can be acquired through natural immunity or vaccine-induced immunity.

Detailed explanation-2: -The function of adaptive immune responses is to destroy invading pathogens and any toxic molecules they produce. Because these responses are destructive, it is crucial that they be made only in response to molecules that are foreign to the host and not to the molecules of the host itself.

Detailed explanation-3: -Natural Active Immunity An active immunity example is when someone is able to very easily fight off a common cold because they have previously had a common cold and their body has antibodies to the virus that causes the common cold.