Mucous membranes are quite thin and fragile. How can such delicate tissue provide defense against microbial invaders?A) The mucus secreted by the mucous membrane physically traps microbes.B) The mucus contains a variety of antimicrobial chemicals and molecules.C) Both the mucus and the outer layer of cells are shed frequently.D) The mucus is a physical trap that contains a variety of antimicrobial chemicals.E) The mucus physically traps microbes, contains a variety of antimicrobial chemicals, and is shed constantly, along with the outermost layer of cells.

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