title: Similarity of the general designs of protochordates and invertebrates.
mesh_terms: D000818:Animals; D001483:Base Sequence; D002816:Chordata, Nonvertebrate / Q000032:analysis* / Q000145:classification; D002938:Ciona intestinalis / Q000032:analysis*; D003596:Cytosine / Q000032:analysis; D004247:DNA / Q000032:analysis; D004447:Echinodermata / Q000032:analysis; D005399:Fishes / Q000145:classification; D006147:Guanine / Q000032:analysis; D007448:Invertebrates / Q000032:analysis; D010802:Phylogeny; D014561:Urochordata / Q000032:analysis*
chemical_list: D006147:Guanine; D003596:Cytosine; D004247:DNA