Final answer:
Acquired immunity is the resistance to pathogens acquired during an adaptive immune response. It can be naturally acquired through the body's response to a pathogen, or artificially acquired through vaccines.
Step-by-step explanation:
Acquired immunity is the resistance to pathogens that is acquired during an adaptive immune response within an individual. It can be either naturally acquired or artificially acquired. Naturally acquired immunity is the result of the body's natural response to a pathogen, while artificially acquired immunity is obtained through the use of vaccines.
For example, if someone gets infected with a certain pathogen, their immune system will respond by producing antibodies and memory cells specific to that pathogen. This means that if they are exposed to the same pathogen again in the future, their immune system will be able to mount a faster and more effective response, preventing the infection.