1. 
   Deuterostome
   Embryonic developmental pattern in which the mouth does not form from the blastopore but from a second opening: includes echinoderms and chordates. Contrasts with morphogenesis in protostome phyla which include annelids, molluscs and arthropods. The two groups also differ in many aspects of early de...
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   Deuterostome
   Deuterostomes (taxonomic term: Deuterostomia; from the Greek: "second mouth") are a superphylum of animals. They are a subtaxon of the Bilateria branch of the subregnum Eumetazoa, and are opposed to the protostomes. Deuterostomes are distinguished by their embryonic development; in deuterostomes, t...
   Found op http://en.wikipedia.org/wiki/Deuterostome
   
   

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