31-II DEUTEROSTOMIA Classification	Select Chapter/Biodiversity TreeHomeBiodiversity Tree1. Physics2. Chemistry3. Astronomy4. Geology5. Cell Structure6. Molecular Biology7. Photosynthesis and Respiration8. Molecular Genetics9. Mitosis and Meiosis10. Mendelian Genetics11. Populations12. Communities13. Ecosystems14. Evidence of Evolution15. Theory and Process of Evolution16. Classification Systems17. Prokaryotes18. Eukaryota19. Viridiplantae (Plants)20. Embryophyta21. Tracheophyta22. Spermatophyta23. Magnoliophyta24. Fungi25. Metazoa (Animals)26. Eumetazoa27. Bilateria28. Coelomata29. Arthropoda30. Insecta31. Deuterostomia32. Chordata33. Vertebrata34. Teleostomi35. Tetrapoda36. Sauroposida37. Aves38. Mammals39. Western/Coniferous Forests40. Taiga (Northern Forests)41. Eastern/Deciduous Forests42. Tropical Forests43. Deserts44. Polar Environments45. Tundra46. Grasslands47. Wetlands48. Freshwater Environments49. Estuaries50. Marine Environments51. Extreme Environments
	Brittle Stars such as this are in a separate class from Sea Stars or "Starfishes" [Photo by Larry Zetwoch/NOAA] Chapter Outline Description of Deuterostomia Classification of Deuterostomia Echinodermata Hemichordata Sources Links to external sites will appear in pop-up windows.			There are three phyla of deuterostomes. Echinodermata and Hemichordata will be explored in this chapter while Chordata will be the focus of the following chapters. Deuterostomia Echinodermata Hemichordata Chordata (following chapters) [ Previous Page ] [ Next Page ]