What is the MAIN way the skin prevents pathogens from entering the body?
A)
by fighting them
B)
by acting as a barrier
C)
by creating immunity against them
D)
by triggering a response in the brain
What is the MAIN way the skin prevents pathogens from entering the body?
A)
by fighting them
B)
by acting as a barrier
C)
by creating immunity against them
D)
by triggering a response in the brain