L. N. Isayev va P. F. Barovskiy qaysi kasalliklarni tugatishiga asos bo’ldi?

Halqali chuvalchanglar tipi.

1.Halqali chuvalchanglarga qaysi sinflar kiradi?................................................................................................................

2.Yomg’ir chuvalchangi qaysi sinfga kiradi?.....................................................................................................................
3.Kam tuklilar qayerlarda uchraydi?..................................................................................................................................
4.Yomg’ir chuvalchangini tanasining uzunligi qancha?.....................................................................................................
5.Tanasi nimalarga bo’lingan?............................................................................................................................................
6.Har bir tana bo’g’imida nima joylashgan?.......................................................................................................................
7.Tayanch vazifasini nima bajaradi?...................................................................................................................................
8.Tanasi tashqi tomondan nima b-n qoplangan?.................................................................................................................
9.Terisi ostida qanday muskullar joylashgan?....................................................................................................................
10.Teri-muskil xaltasini nimalar hosil qiladi?....................................................................................................................
11.Halqasimon muskullar qisqarganda…..?.......................................................................................................................
12.Bo’ylama muskullar qisqarganda……?.........................................................................................................................
13.Tana bo’shlig’i qanday tuzilgan?...................................................................................................................................
14.Tana bo’shlig’i bo’lmalar soni nimaga teng?................................................................................................................
15.Nerv sistemasini nimalar hosil qiladi?...........................................................................................................................
16.Halqum osti nerv tuguni qaysi nerv tuguniga tutashgan?..............................................................................................
17.,Yomg’ir chuvalchangi qanday ta’sirlarni sezadi?.........................................................................................................
18.Yomg’ir chuvalchangining pillasi nimadan hosil bo’ladi?............................................................................................
19.Pilla ichiga nechtagacha tuxum qo’yadi?......................................................................................................................
20.Tuxumdan qachon chuvalchang chiqadi?.....................................................................................................................
21.Chuvalchang necha yil yashaydi?..................................................................................................................................
22.O’g’iz teshigi qayerda joylashgan?................................................................................................................................
23.Qizilo’ngachning kengaygan qismi nima deyiladi?.......................................................................................................
24.Jig’ildon qayerga ochiladi?............................................................................................................................................
25.Qon aylanish sitemasini nimalar hosil qiladi?...............................................................................................................
26.Yurak vazifasini nima bajaradi?....................................................................................................................................
27.Qon aylanish sistemasi qanday tipda tuzilgan?.............................................................................................................
28.Yomg’ir chuvalchangi nima orqali nafas oladi?............................................................................................................
29.Ayirish sistemasi qanday tuzilgan?................................................................................................................................
30.Ayirish naychalarining uchi qayerga ochiladi?..............................................................................................................
31.Ayirish naychalarining tana bo’shlig’iga ochilgan qismida nimalar joylashgan? ……………………………………
32.Yomg’ir chuvalchangllarni qancha turi bor?.................................................................................................................
33.Bir gektar maydondagi chuvalchanglar bir yilda qancha tuproqni qayta ishlaydi?.......................................................
34.Chuchuk suvlarda qaysi chuvalchanglar tarqalgan?......................................................................................................
35.Sanitarlik vazifasini qaysi chuvalchang bajaradi?.........................................................................................................
36.Akvarium baliqlari u-n maxsus ko’paytiriladigan chuvalchang?..................................................................................
37.Dengiz tupida hayot kechiradigan chuvalchagn?..........................................................................................................
38.Nereida tanasi nima b-n qoplangan?..............................................................................................................................
39.Ko’p tuklilarga qaysi chuvalchanglar kiradi?................................................................................................................
40.Ko’p tuklilar qaysi hayvonlarning asosiy ozig’i nima hisoblanadi?..............................................................................
41.Halqali chuvalchanglar… kelib chiqqan?......................................................................................................................
42.Ko’p tukli halqali chuvalchanglar qaysi belgilari b-n yassi chuvalchanglarga o’xshaydi?...........................................................................................................................................................................
43.Ko’p tuklilar kelib ….chiqqan?.....................................................................................................................................
44.Halqali chuvalchanglarning nechta turi bor?.................................................................................................................