Assertion: sea slug's shell | /r/HasProperty | tube
Facets:
Source sentences:
text: While the living animal occupies the outermost chamber in the animal’s shell, a tube leading from the inner chambers helps enable chambered nautiluses to regulate the flow of gases which control buoyancy.
text: Marine annelid worms in the family Serpulidae create shells which are tubes made of calcium carbonate cemented onto other surfaces.