L. N. Isayev va P. F. Barovskiy qaysi kasalliklarni tugatishiga asos bo’ldi?
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7-sinf Zoologiya mavzulashtirilgan
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Baliqlarning xilma-xilligi.
1.Qayerlarda yashaydigan baliqlarning yog’du taratadigan a’zolari bo’ladi?.................................................................... 2.Suv yuzasida yashaydigan baliqlarning qaysi muskullari kuchli rivojlangan?............................................................... 3.Skeletining tuzilishiga ko’ra baliqlar qanday sinfga ajratiladi?....................................................................................... 4.Tog’ayli baliqlar qanday tuzilgan?.................................................................................................................................. 5.Tog’ayli baliqlarning jabra yoriqlari necha juft bo’ladi?................................................................................................. 6.Tog’ayli baliqlarga qaysi turkumlar kiradi?.................................................................................................................... 7.Akulalarning tanasi qanday tuzilgan?.............................................................................................................................. 8.Akulalarning tangachalari tashqi tomondan nima b-n qoplangan.?................................................................................. 9.Akulalarning jag’idagi tishsimon o’simtalar nimaga aylangan?..................................................................................... 10.Akulalar qanday yo’l b-n ko’payadi?............................................................................................................................ 11.Akulalarning qancha turi bor?....................................................................................................................................... 12.Eng kichik akula va uning uzunligi?.............................................................................................................................. 13.Uzunligi 18 mga yetadigan akula?................................................................................................................................. 14.Akulalar nimalar b-n oziqlanadi?................................................................................................................................... 15.Skatlarning tanasi qanday shaklda bo’ladi?................................................................................................................... 16.Skatlarning dum suzgichi nimaga aylangan?................................................................................................................. 17.Skatlar suvda qanday harakatlanadi?............................................................................................................................. 18.Bitta urg’ochi skat nechtagacha avlod beradi?.............................................................................................................. 19.Skatlar nimalar b-n oziqlanadi?..................................................................................................................................... 20.Eng yirik skat?............................................................................................................................................................... 21.Skatlarning nechta turi bor?........................................................................................................................................... 22.Manta nimalar b-n oziqlanadi?...................................................................................................................................... 23.Skatlar nima maqsadlarda ovlanadi?............................................................................................................................. 24.Baqra balig’ining suyak plastinkalari tanasining qayerida joylashgan?........................................................................ 25.O’rta Osiyo suv havzalarida suyakli-tog’ayli baliqlardan qaysi vakillari uchraydi?..................................................... 26.Baqra balig’ining uzunligi va o’girligi?......................................................................................................................... 27.Soxta kurakburun qayerlarda uchraydi?....................................................................................................................... 28.Uzunligi 75 sm,og’irligi 2 kg keladigan baliq?............................................................................................................. 29.Qaysi baliq turi noyob tur sifatida muhofaza qilinadi?................................................................................................. 30.Dengizlarda losossimonlarning qaysi vakillari uchraydi?............................................................................................. 31.Bukri baliqning ikkinchi nomi?..................................................................................................................................... 32.Gulmoy balig’i qayerlarda keng tarqalgan?................................................................................................................... 33.Forel balig’ining ikkinchi nomi?................................................................................................................................... 34.Zog’ora baliq qaysi turkumga mansub?......................................................................................................................... 35.Mo’ylov baliq qayerlarda uchraydi?.............................................................................................................................. 36.Tog’ daryolari va soylarida qaysi baliq tarqalgan?........................................................................................................ 37.Uzoq sharq daryolaridan qaysi baliq kelib iqlimlashtirilgan?....................................................................................... 38.Panjaqanotli baliqlar turkumiga mansub baliq?............................................................................................................. 39.Latimeriya qayerlardan topilgan?.................................................................................................................................. 40.Qaysi baliq turkumlarining go’shti va ikrasi yuqori baholanadi?.................................................................................. 41.Jahon bo’yicha har yili qancha baliq ovlanadi?............................................................................................................. 42.Baliqlarning asosiy qismi qaysi suv havzalaridan ovlanadi?......................................................................................... 43.Baliqlarning ovlash kemalari nima deb ataladi?............................................................................................................ 44.O’zbekistonda baliqlar qaysi suv havzalaridan ovlanadi?............................................................................................. 45.O’zbekistonda ovlanadigan baliqlar?............................................................................................................................. 46.Respublikamiz suv havzalariga qaysi baliqlar iqlimlashtirilgan?.................................................................................. 47.Baliqlarning qadimgi ajdodi?......................................................................................................................................... 48.Baliqlarning moyi qanday ahamiyatga ega?.................................................................................................................. 49.Ovlanadigan baliqlarning asosiy qismi nima maqsadda ishlatiladi?............................................................................. 50.Qaysi baliq turkumlari barcha suv havzalarida keng tarqalgan?................................................................................... 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