Yassi chuvalchanglar rivojlanish shakli- parazit hayot mahsuli 1. Yassi chuvalchanglar (plathelminthes) tipi. 2. Jigar qurtlarining (Fasciola sp.) biologik xususiyatlari. 3. Mushuk ikki so'rg'ichlisi (Opisthorchis felineus). 4. Monogeniyalar (monogenea) sinfi.