A vaccine contains
A) antibodies.
B) active B cells.
C) antigens.
D) active killer T cells.
Correct Answer:
Verified
Q52: At various points along the lymphatic ducts
Q52: A disease-causing agent is called a(n)_.
Q53: Interferons summon _ cells that destroy any
Q54: A lymphocyte is activated when unique _-binding
Q55: _ nodes are pockets that contain specialized
Q56: _ blood cells are a kind of
Q59: The _ immune system is a specific
Q60: Macrophages and neutrophils make up a _
Q61: A vaccine stimulates the formation of _
Q62: When an item irritates the eyes, tears
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