Question

Mention the three characteristics of acquired immunity.

Answer 1

The adaptive system, also referred because the acquired system, may be a subsystem of the system that's composed of specialized, systemic cells and processes that eliminate pathogens by preventing their growth.

Complete answer:
The three important characteristics of the acquired immunity are:
Antigenic specificity - it's the power of the host cells to acknowledge an antigen specifically as a singular molecular entity and distinguish it from another antigen.
Immunological memory - It's the power of the host cells to recollect antigens or pathogens, tumor cells, tissues of immunological self.
Ability to differentiate between self and non-self — the antigens located on our cells are referred to as self-antigens while those which don't originate in our body are referred to as non-self-antigens. Our system should have the power to differentiate between self and non-self-antigens.
The primary and secondary immune responses are carried out by special types of cells -B lymphocyte and T lymphocytes. B lymphocytes produce proteins known as antibodies.These antibodies are found in blood and hence known as humoral immune response. On the other hand T lymphocytes hellps B lymphocytes to produce antibodies. They mediate cell mediated immunity.

Note:
It is important to note that acquired (adaptive or specific) immunity isn't present at birth but it is learned gradually over the years by the memory of the immune system. The training process starts when an individual's system encounters foreign particles; immunity against infectious diseases could also be mediated by antibodies and/or T lymphocytes.