Assertion: diatom's shell | /r/MadeOf | single chamber
Facets:
Source sentences:
text: The following terms are used: Unilocular refers to a shell made of a single chamber Uniserial refers to chambers added in a single linear series Biserial refers to chambers added in a double linear series Triserial refers to chambers added in a triple linear series Planispiral refers to chambers added in a coil within a single plane like the chambered nautilus Trochospiral refers to chambers added in a coil that forms a spire like a snail shell