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Select the one best response to each question!
Enhancement of phagocytosis by coating of foreign particles with serum proteins is called
Jenner’s work with cowpox, which provided immunity against smallpox, demonstrates which phenomenon?
Which of the following can be attributed to Pasteur?
Which of the following peripheral blood cells plays a key role in killing of parasites?
Which of the following plays an important role as an external defense mechanism?
The process of inflammation is characterized by all of the following except
Skin, lactic acid secretions, stomach acidity, and the motion of cilia represent which type of immunity?
The structure formed by the fusion of engulfed material and enzymatic granules within the phagocytic cell is called a
Which of the following white blood cells is capable of further differentiation in the tissues?
The presence of normal flora acts as a defense mechanism by which of the following means?