b. it has memory is not true about innate immunity.
Innate immunity, also known as nonspecific immunity, is the defense mechanism you were born with. You are shielded from all antigens by it. Barriers that prevent hazardous substances from entering your body are a part of innate immunity. These barriers serve as the immune system's first line of defense.
Three protective mechanisms of the innate immune system can be distinguished: physical barriers, cellular components, and humoral responses (15). The roles of these defense mechanisms are remarkably similar in fish and mammals, as will be discussed.
The innate immune system's neutrophils are regarded as the initial defense. The blood is carried by neutrophils and macrophages, which remain in tissues and keep an eye out for any concerns. Both cells have the ability to "eat" bacteria and, in the event of a problem, to interact with other immune cells.
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