title: Gradients in time of origin of tadpoles motorneurons.
mesh_terms: D000818:Animals; D001001:Anura / Q000196:embryology*; D001345:Autoradiography; D002454:Cell Differentiation; D002465:Cell Movement; D007814:Larva; D008938:Mitosis; D009046:Motor Neurons / Q000378:metabolism; D013116:Spinal Cord / Q000196:embryology*; D013936:Thymidine / Q000378:metabolism; D013997:Time Factors; D014316:Tritium
chemical_list: D014316:Tritium; D013936:Thymidine