Give any two unique features of acquired immunity.

1.	Give any two unique features of acquired immunity.
Answer» Unique features of acquired immunity are as follows: a. Specificity: Acquired immunity is specific for each type of pathogen. It has the ability to differentiate between various foreign molecules. b. Diversity: It has the ability to recognize vast variety of diverse pathogens or foreign molecules. c. Discrimination between self and non-self: It is able to differentiate between own cells (self) and foreign cells or molecules (non-self). d. Memory: When the immune system encounters a specific pathogen for the first time, it generates immune response and eliminates the invader. The immune system retains the memory of this encounter. As a result, a second encounter with same pathogen stimulates a stronger immune response.

Answer»

Unique features of acquired immunity are as follows:

a. Specificity:

Acquired immunity is specific for each type of pathogen. It has the ability to differentiate between various foreign molecules.

b. Diversity:

It has the ability to recognize vast variety of diverse pathogens or foreign molecules.

c. Discrimination between self and non-self:

It is able to differentiate between own cells (self) and foreign cells or molecules (non-self).

d. Memory:

When the immune system encounters a specific pathogen for the first time, it generates immune response and eliminates the invader. The immune system retains the memory of this encounter. As a result, a second encounter with same pathogen stimulates a stronger immune response.

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