## Problem 056 — rank:220

**Title:** Universal microbial growth laws

**Added binding assumptions (LaTeX):**

```latex
Choose a prespecified nested family of taxon/condition classes or report all inclusion-maximal supported classes; there need not be a unique largest one. Units of elongation rate and protein length must make $z$ dimensionless. Parameter count, fitting data and extrapolation rules are fixed before validation. Finite-panel success does not establish a universal relation outside that panel.
```

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