Assertion: kidney | /r/CapableOf | differ in position
Facets:
value: from each other
type: OTHER
value: in their embryonic history
type: TEMPORAL
Source sentences:
text: Among vertebrates there are three kinds of nephridial structures serving as kidneys that differ from each other not only in structure and position in relation to the blood system and the excretory tubes, but also in their embryonic history.