Assertion: echinoderm's system | /r/HasProperty | complete digestive
Facets:
Source sentences:
text: On the other hand, echinoderms have a well-developed coelom and a complete digestive system.
text: The digestive system is complete, but it has become secondarily incomplete or lost in some species.
text: On the other hand, echinoderms have a well-developed coelom and a complete digestive system.