The greatest number of pathogens enter the body through the
A. respiratory system.
B. gastrointestinal system.
C. urinary system.
D. genital system.
E. skin.
Answer: A
The greatest number of pathogens enter the body through the
A. respiratory system.
B. gastrointestinal system.
C. urinary system.
D. genital system.
E. skin.
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