AcPase, AlkPase and ATPase activities in the model test parasite Raillietina echinobothrida; photographs of fresh frozen sections (light microscopy) a–c AcPase activity a Control, bP. fulgens-treated, c PZQ treated. d–f AlkPase activity, d Control, eP. fulgens-treated, f PZQ treated, g–i ATPase activity g Control, hP. fulgens-treated, i PZQ treated