Embryonic induction in amphibians.
D000663:Amphibians / Q000196:embryology*; D000818:Animals; D004475:Ectoderm / Q000502:physiology; D004625:Embryo, Nonmammalian / Q000502:physiology*; D005314:Embryonic and Fetal Development; D005775:Gastrula / Q000166:cytology / Q000502:physiology; D009474:Neurons / Q000166:cytology / Q000502:physiology