## Problem 313 — rank:201

**Title:** The uncultivated microbial majority

**Added binding assumptions (LaTeX):**

```latex
The region is a supported predictive growth region, not automatically the causal effect of setting environmental coordinates. Define community composition, absolute taxon abundance and the detection threshold jointly. Genome-feature transfer to withheld taxa requires a declared structural or phylogenetic model and a target taxon distribution. Region membership should be reported as inner/outer confidence sets where parameter ambiguity crosses the probability threshold.
```

**Direct edits:** 0. **Fresh external checks:** None; supplied sources retained as provenance.