Which of the following is mismatched regarding protection of the body from pathogens?
A) Stomach-acid conditions and normal microbiota
B) Skin-salt, fatty acids, and normal microbiota
C) Respiratory tract-mucociliary escalator
D) Peroxidases-milk, saliva, mucus, and some phagocytes
E) Saliva-lysozyme, peroxidase, and lactoferrin

Question

Quizplus · Accepted Answer

The stomach's primary defense against pathogens is its highly acidic conditions, which can kill or inhibit the growth of many microbes. While the stomach does have its own normal microbiota, these are adapted to survive in its acidic environment rather than serving as a primary defense mechanism. Thus, the pairing of "acid conditions and normal microbiota" as a defense mechanism is mismatched, as the acid conditions are the primary defense, not the microbiota.

Which of the Following Is Mismatched Regarding Protection of the Body