* Biomes: These are large-scale ecosystems characterized by similar climate, vegetation, and animal life. Examples include deserts, rainforests, grasslands, tundra, and aquatic biomes.
* Biofilms: These are communities of microorganisms that are attached to a surface and encased in a matrix of extracellular polymeric substances (EPS). Biofilms can form on almost any surface and are often associated with problems in industrial settings, medical devices, and environmental systems.
* Biomass: This refers to the total mass of living organisms in a given area or ecosystem. It is often used as a measure of the productivity of an ecosystem.
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