Assertion: sea urchin | /r/HasAspect | mouth
Facets:
Source sentences:
text: They have a mouth located on their upper part of their body (also known as the oral surface) although some sea urchins have a mouth located towards one end (if their body shape is irregular).
text: They have a mouth located on their upper part of their body (also known as the oral surface) although some sea urchins have a mouth located towards one end (if their body shape is irregular).
text: Sea urchins have a mouth that consists of five jaw-like parts (similar to the structure of brittle stars).