The human body uses three lines of defense to protect against pathogens. Match each of the following categories of defense to the type of cell or mechanism involved in the defense. Answers may be used more than once.
-cytotoxic T cells
A)physical or chemical barrier
B)specific defense mechanism
C)nonspecific defense mechanism

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The Answer of The human body uses three lines of defense to protect against pathogens. Match each of the following categories of defense to the type of cell or mechanism involved in the defense. Answers may be used more than once.
-cytotoxic T cells
A)physical or chemical barrier
B)specific defense mechanism
C)nonspecific defense mechanism

The Human Body Uses Three Lines of Defense to Protect