Assertion: vertebrate's system | /r/HasProperty | unique
Facets:
value: in its nephrons
type: LOCATION
Source sentences:
text: The excretory system is unique in its nephrons, which filter the blood in the glomeruli and remove a variety of wastes from the body through selective secretion and reabsorption.
text: The digestive system of birds is unique, with a crop for storage and a gizzard that contains swallowed stones for grinding food to compensate for the lack of teeth.