1. Pilla ichiga tuxum qo’yuvchi organizmlarni aniqlang. A yomg’ir chuvalchangi, butli o’rgimchak

D) moluskalilar tipiga
11. Nozemaga xos bo`lmagan belgilarni ajrating.
a) harakatlanish organoidi bo`lmaydi; b) harakatlanish
organoidi bo`ladi; c) hazm organoidi bo`lmaydi; d) hazm organoidi bo`ladi; e) ayirish organoidi bo`lmaydi; f) ayirish organoidi bo`ladi; j) tut ipak qurti va asalari paraziti; k) odam paraziti
A) a,c,e,j B) b,d,f,k C) a, c, f, k D) b, d, e, j
12 Kam (a) va ko`p (b tukli chuvalchanglarni juftlab ko`rsating.1) yomg`ir chuvalchangi;
2)nereida; 3) o`troq dengiz chuvalchangi; 4) qizil chuvalchang; 5) bo`rtma nematoda
A) a - 1, 2; b - 3, 4 B) a - 1, 3; b - 2, 4 C) a - 1, 4; b - 2, 3 D) a - 1, 5; b - 2, 4
13. Yassi chuvalchanlar nimalardan kelib chiqqan?
A) ichaksiz kiprikli chuvalchanglardan B) to’garak chuvalchanglardan C) halqali chuvalchanlardan D)meduzalardan
14. Eng yirik o‘rgimchaksimonni belgilang.
A) dafniya B) qoraqurt C) falanga D) kana
15. Butli o'rgimchak oyoq paypaslagichlariga xos xususiyatlarni aniqlang. 1) xitin po'st bilan qoplanmagan; 2) asosiy bog'imlari pastki jag'lar vazifasini bajaradi; 3) sezgir tukchalar bilan qoplangan; 4) hid bilishda ishtirok etadi; 5) yurish oyoqlariga nisbatan kalta; 6) tuyg'u organi hisobanadi A) 2.3.6 B) 1.3.5.6 C) 3.4.5 D) 1.4
16. Quyidagi hayvonlarning qaysilari ochiq qon aylanish sistemasiga ega?
A) ustritsa, nereida B) midiya, yomg`ir chuvalchangi
C) ipak qurti, taroqchi D) qizil chuvalchang, kulrang satir
17.
4- rasmdagi hayvon?

2. 
   dafniya B) siklop C) zaxkash D) krevetka
   

18. Go'shti uchun ovlanadigan dengizda yashovchi ikki pallali rnolluskalar (a) va boshoyoqlilar (b) vakillarini ajrating.
1) ustritsa; 2) taroqcha; 3) krab; 4) karakatitsa; 5) osminog; 6) krevetka; 7) kalmar; 8) midiya; 9) bitiniya
A) a-4, 8; b-5, 6 B) a-2, 8; b-5, 7 C) a-2, 9; b-4, 7
D) a-1, 2; b-3, 7

19. Quyida berilgan parazit chuvalchanglarning
uzunligi to‘g‘ri berilgan javobni toping.
1) jigar qurti; 2) qoramol tasmasimon
chuvalchangi; 3) askaridaning erkagi;
4) askaridaning urg‘ochisi;
a) 0,2-0,4 sm; b) 3-4 sm; v) 8-10 sm; g) 8- 10 m;
d) 20-40 sm; e) 15-25 sm
A) 1 - b; 2 - g; 3 - e; 4 - d
B) 1 - a; 2 - v; 3 - b; 4 - e
C) 1 - b; 2 - v; 3 - a; 4 - d

20. Butli o'rgimchak organlarini ularning soni bilan juftlang. a) 8 ta: b) 6 ta: c) 2ta: d) 4 ta: 1) so'gallari: 2) yurish organlari: 3) ko'zlari: 4) og'iz organlari:
A) a-2:3 b-1: d-4: B) a-1: c-2.4: d-3:
C) b-1: c-2.4: d-3 D) a-1: c-2: d-3.4