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Identify and Give the Historical Significance of Each of the Following

question 56

Essay

Identify and give the historical significance of each of the following terms, events, and people in a paragraph or two.
-Haymarket Affair


Definitions:

Macrophages

A type of white blood cell part of the immune system, responsible for detecting, engulfing, and destroying pathogens and dead cells.

Null Cells

Lymphocytes that lack surface markers distinctive of T or B cells, often associated with natural killer cell activity.

Variable Regions

Parts of antibodies that differ from one antibody to another, enabling them to bind to a specific antigen.

T-cell Receptors

These receptors on the surface of T-cells recognize and bind to antigens presented by other cells, initiating an immune response.

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