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MALT (mucosa-associated lymphoid tissue) constitutes approximately what percentage of the body's lymphoid tissue?
A~10%
B~75%
C~50%
D~25%
Answer & Solution
Correct answer: C. ~50%
**MALT** lines the mucosa of major tracts (respiratory, digestive, urogenital). Constitutes about **50% of total lymphoid tissue** in the human body — the largest immune barrier between us and the outside world via mucosal surfaces.
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