KIRISH………………………………………………………………...3 I BOB. BIR HUJAYRALILAR – PROTOZOA KENJA DUNYOSINING NERV MUSKUL SISTEMASI RIVOJLANMAGAN VAKILLARI…………………………………..6 Sarkomastigoforalar – sarcomfstigophora tipi…………………6Infuzoriyalar – infuzoria tipi………………………………...…15II BOB. KO’P HUJAYRALILAR – METAZOA KENJA DUNYOSINING NERV VA MUSKUL SISTEMASI RIVOJLANMAGAN VAKILLARI…………………………………19 2.1. Bo’shliq ichlilar – coelenterata tipi……………………….…….19 2.2. Yassi chuvalchanglar tipi umumiy tavsifi va nerv muskul sistemasini rivojlanishi……………………….…………………..…..29 2.3. Kiprikli chuvalchanglar (Turbellaria) sinfi………………..…...30 III BOB. UMIRTQASIZ HAYVONLAR KELIB CHIQISHIDA FILOGENETIK BOG’LIQLIGI……………………………….……35 3.3.Umurtqasiz hayvonlar filogeniyasi…………………………..…..35 XULOSA………………………………………………………...…….41 FOYDALANILGAN ADABIYOTLAR……………………………..43