title: Ultrastructure and growth of the sea urchin tooth.
mesh_terms: D000818:Animals; D002113:Calcification, Physiologic; D002119:Calcium Carbonate / Q000378:metabolism; D003094:Collagen / Q000378:metabolism; D003460:Crystallization; D008854:Microscopy, Electron; D009804:Odontoblasts; D012617:Sea Urchins / Q000033:anatomy & histology* / Q000254:growth & development; D014070:Tooth / Q000033:anatomy & histology* / Q000254:growth & development; D014092:Tooth Root
chemical_list: D003094:Collagen; D002119:Calcium Carbonate