The development of the vitelline envelope during Bufo arenarum oogenesis.
D000818:Animals; D002022:Bufo arenarum; D006056:Golgi Apparatus / Q000648:ultrastructure; D009865:Oocytes / Q000648:ultrastructure; D009866:Oogenesis; D014817:Vitelline Membrane / Q000648:ultrastructure*; D014818:Vitellogenesis