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When large DC motors require controlled steps of acceleration, a series of resistors connected to lockout relays provide the means for ____ motor acceleration.
Immune System
The immune system is the body's defense mechanism against pathogens, consisting of a network of cells, tissues, and organs that work together to protect the body from disease.
Extracellular Antigens
Foreign substances outside cells that stimulate an immune response.
Subpopulation
A distinct group within a larger population that can be identified by certain characteristics or behaviors.
T Cells
A type of white blood cell that is vital for the immune response, recognizing and responding to pathogens and infected cells.
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