Some foreign substances in the body are too small to start an immune response by themselves, so they join to proteins in the blood, where they are able to trigger an immune response. These substances are called ________.
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Q37: Which type of immunity results from a
Q38: Which of the following identifies how far
Q39: Which of the following is an excessive
Q40: Which activated T cells increase phagocytosis and
Q41: The body's mechanisms to protect itself against
Q43: When normal cells create growths, the growths
Q44: The most active phagocytes in the blood
Q45: In a(n) _ disease, the body begins
Q46: Fluids in the body are called _.
Q47: Major proteins in serum that attack pathogens
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