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The Russian Plain is essentially an eastward continuation of the North European Lowland.
Antibodies
Proteins produced by the immune system in response to antigens, which are harmful substances, helping to neutralize or destroy them.
Innate Immunity
The body's first line of defense against infection that includes physical barriers, immune cells, and proteins, responding to pathogens in a generic way.
Helper T Cells
A type of T cell that plays a critical role in the immune response by activating and directing other immune cells.
Phagocytosis
The process by which cells, particularly immune cells, engulf and digest large particles or microorganisms.
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