Identify how the physical barriers of the immune system protect the body against pathogens. Check all that apply.
part of the immune system does not function properly
engulf, destroy, and digest pathogens such as bacteria in the body.
masses of cells form and steal nutrients from healthy cells
White blood cells protect against and aid in blood clotting when injuries are sustained.
immune system overreacts to an antigen
What is the role of Langerhans cells?
the body's immune system attacks its healthy cells, mistaking them for pathogens
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