Instructions: Please Define the Following Key Terms

question 64

Essay

Instructions: Please define the following key terms. Show Who? What? Where? When? Why Important?
new   imperialism

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Definitions:

Antigen

Any substance that the immune system can recognize and potentially trigger an immune response, often a protein on the surface of pathogens, allergens, or cancer cells.

Thalassemia

A genetic blood disorder characterized by less oxygen-carrying protein in red blood cells.

Pernicious Anemia

A form of anemia caused by the body's inability to absorb vitamin B12 from the gastrointestinal tract, leading to a reduction in red blood cell production.

Hematocrit (Hct)

The percentage of red blood cells in a volume of blood.