Skin is able to prevent most microorganisms from entering the body by
A) producing alkaline secretions.
B) having keratin in the uppermost layer.
C) production of antibodies.
D) the adhesion junction in the skin preventing bacteria from entering.
E) releasing macrophages on the skin surface.

Question

Quizplus · Accepted Answer

Keratin in the uppermost layer of the skin provides a tough, protective barrier that prevents most microorganisms from penetrating the skin.

Skin Is Able to Prevent Most Microorganisms from Entering the Body