A lymphocyte is activated when unique ____________________-binding proteins on its surface recognize specific molecules found on the surface of a specific pathogen.
Correct Answer:
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Q49: Active immunity results from injecting
A)a harmless form
Q50: The _ is a coordinated combination of
Q51: The fetus of a lion receives antibodies
Q52: At various points along the lymphatic ducts
Q52: A disease-causing agent is called a(n)_.
Q53: Interferons summon _ cells that destroy any
Q55: _ nodes are pockets that contain specialized
Q56: _ blood cells are a kind of
Q57: A vaccine contains
A)antibodies.
B)active B cells.
C)antigens.
D)active killer T
Q59: The _ immune system is a specific
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