title: The effect of lysine and histidine on the development of echinoid embryos.
mesh_terms: D000818:Animals; D004625:Embryo, Nonmammalian / Q000187:drug effects*; D005314:Embryonic and Fetal Development; D006639:Histidine / Q000494:pharmacology*; D008239:Lysine / Q000494:pharmacology*; D012617:Sea Urchins / Q000187:drug effects / Q000196:embryology*; D013696:Temperature
chemical_list: D006639:Histidine; D008239:Lysine