Assertion: echinoderm's body | /r/HasProperty | covered with cilium
Facets:
value: like flatworms
type: OTHER
Source sentences:
text: Free-living marine worms with a distinctive eversible proboscis consisting of a long, hollow tube; the unsegmented body is covered with cilia; like flatworms, arrow worms are acoelomates (without a coelom), but they do have a complete digestive system.