A wetland restoration project is being evaluated for its ability to reduce downstream microbial contamination. The site hosts diverse microbial biofilms and shows reduced coliform levels over time. Which explanation BEST connects microbial diversity with observed water quality improvements?

Question

Answer

Biofilms physically trap pathogens, reducing their viability.

Answer

Coliforms are inhibited by biofilm-produced methane.

Answer

Functional redundancy among microbes supports continuous contaminant removal under variable conditions.

Answer

Diverse microbial communities outcompete coliforms for nitrogen.

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A wetland restoration project is being evaluated for its ability to reduce downs...

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