+A biofilm is a collective of [microorganisms](/wiki/microorganism) where cells adhere to each other on a surface, often embedded within a self-produced extracellular polymeric substance. These complex, resilient structures are ubiquitous in nature, from river stones to living tissues, playing roles in [infection](/wiki/infection) and environmental processes.
+## See also
+- [Bacteria](/wiki/bacteria)
+- [Microbe](/wiki/microbe)
+- [Antibiotic](/wiki/antibiotic)
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