_______ is the Body's First Line of Defense Against Pathogens

Question

_______ is the body's first line of defense against pathogens and other harmful substances.
A) Inflammation
B) Skin
C) Edema
D) The macrophage

Accepted Answer

The skin acts as a physical barrier to prevent pathogens and harmful substances from entering the body. It is the first line of defense in the body's immune response.