Bryozoans and brachiopods are Protostomia. That means that the blastopore (opening in the gastrula) give rise to both mouth and anus, that the fate of the blastomeres is determined very early, the nervous system is ventrally situated
Bryozoans and brachiopods are Protostomia. That means that the blastopore (opening in the gastrula) give rise to both mouth and anus, that the fate of the blastomeres is determined very early, the nervous system is ventrally situated