About: http://webisa.webdatacommons.org/113107048

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The authors suggest that what it is is an ancient blastoporal signaling center, a region that was used to specify body pattern along the anterior-posterior axes, and within the ectoderm and endoderm.
http://www.w3.org/ns/prov#wasQuotedFrom	scienceblogs.com