Assertion: echinoderm | /r/RelatedTo | chordate
Facets:
value: closely
type: DEGREE
Source sentences:
text: The recently described larval stage supports the idea that crinoids are basal echinoderms, and that echinoderms are related to chordates.
text: While echinoderms are closely related to chordates, they often have radial symmetry in their adult form.