title: Reduction of the archenteron in sea urchin larvae without typical animalization.
mesh_terms: D002458:Cell Fractionation; D005260:Female; D007814:Larva / Q000187:drug effects; D010063:Ovum / Q000032:analysis; D012617:Sea Urchins / Q000187:drug effects / Q000196:embryology*; D014020:Tissue Extracts / Q000494:pharmacology
chemical_list: D014020:Tissue Extracts