Which non-specific defense mechanism is mismatched with its associated body structure or body fluid?

Mucociliary escalator - intestine

Explanation:

This is a complete mismatched. Simply because this defense mechanism maintains the respiratory tract by sweeping foreign substances inhaled with air molecules upwards in the trachea, to be swallowed or spit out.

It is composed of the Goblet cells and Ciliated Epithelium. It is a defence mechanism which protects the lungs parenchyma from infection and inflammation from foreign particles and microorganism. The mucus produced from the Goblet cells trapped theses particles, at the same time moistening the pathways, while the cilliated epithelium beat in upward fashion to sweep them out through the trachea. To complete mucociliary clearance.