neodermata taksoni
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слайд 1 neodermata taksoni so’rg’ichlilar (trematoda) sinfi tasmasimon chuvalchanglar(cystoda) sinfi monogenetik so’rg’ichlilar (monogenea) sinfi neodermatalar filogeniyasi va kelib chiqishi * * parazit hayot tarziga o'tish jarayonida o'zining asl epidermisini yo'qotgan, uning o'rnida neodermis-tegument hosil bo'lgan barcha yassi parazit chuvalchanglarni o'z ichiga olgan guruh. tana qoplag‘ichi tegument deb ataladigan kipriksiz epiteliydan iborat. epiteliyning sirtqi qavati yadrosiz sitoplazmatik plastinkadan iborat. bu qavat hujayralar juda ko‘p mitoxondriylar va vakuollarga ega, lekin hujayralar o'rtasida chegara yo'qolib, sinsitiy hosil qiladi. epiteliy sirtidagi har xil pixlar qo'shimcha yopishuv organi hisoblanadi. sitoplazmatik ipchalar yordamida tegument qavati sitoplazmaning parenx...
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