title: Fine structural study of fertilization in the ascidian, Ciona intestinalis.
mesh_terms: D000818:Animals; D002118:Calcium / Q000032:analysis; D002462:Cell Membrane / Q000648:ultrastructure; D003594:Cytoplasmic Granules / Q000032:analysis / Q000648:ultrastructure; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D005260:Female; D005306:Fertilization; D008928:Mitochondria / Q000648:ultrastructure; D009997:Osmotic Pressure; D010063:Ovum / Q000648:ultrastructure*; D014561:Urochordata / Q000502:physiology* / Q000648:ultrastructure
chemical_list: D002118:Calcium