Neural simplicity and genetic complexity.
D000818:Animals; D017173:Caenorhabditis elegans / Q000235:genetics / Q000502:physiology; D002454:Cell Differentiation; D008967:Molecular Biology; D009420:Nervous System / Q000166:cytology* / Q000378:metabolism*; D009474:Neurons / Q000166:cytology / Q000378:metabolism*