11. Until the discovery of anaerobic metazoa , oxygen was thought to be a requirement for all complex life. 12. PMID 17142674 ?! This paper interestingly discusses the genetic diversity and phylogeny of monoamine transporters throughout metazoa . 13. Many genes in this survival network merged at Metazoa or later, and probably not coincidentally at Deuterostomia. 14. This is a useful technique for pure culture of fungi, multicellular algae, and small metazoa , for example. 15. The name first appeared in an invertebrate paleontology book as one of the " branches " of the subkingdom Metazoa . 16. Like other metazoa , gastrulation leads to the formation of three germ layers : the endoderm, mesoderm, and ectoderm. 17. It has been suggested that the evolutionary source of a single ancestral Kindlin protein is the earliest metazoa , the Parazoa. 18. The opisthokonts, sometimes referred to as the " Fungi / Metazoa group ", are generally recognized as a monophyletic clade. 19. Initially, molecular-biology methods were applied unsuccessfully to test the various theories regarding Placozoa's position in the Metazoa system. 20. But what lower animals that are still multi-cellular and therefore metazoa ( that is, higher animals ) get cancer?
