Assertion: sea squirt's heart | /r/HasProperty | thin-walled tubular organ
Facets:
value: in the bottom of elongated zooids
type: LOCATION
value: in colonial ascidians
type: LOCATION
Source sentences:
text: The heart is a thin-walled tubular organ on the ventral side of the body or, in colonial ascidians, in the bottom of elongated zooids.