sinf yakuniy 1)Qaysi organizmlarda yuragi (a), 3(b) va 4(c) kamerali bo`ladi ?

44.Barmoqlari orasida parda tortilmagan hayvonlar ?
1) laylak 2) yexidna 3) pingvin 4) churrak 5) gaaga 6) suqsun
7) o`rdakburun 8) gaviala 9) jayra
A) 1,2,3,9 B) 4,6,7,9 C) 4,5,6,8 D) 1,3,5,7,8,9
45.Tuxum-go'sht yo'nalishidagi tovuq zotlarini ko'rsating.
1) Lekgorn 2) Pervomaysk 3) Zagorsk 4) Kornuel
A) 1,2 B) 2,3 C) 3,4 D) 2,4
46.Quyidagi nomlari ko`rsatilgan tovuq zotlari qanday maqsadlarda boqiladi ? 1) rus oq tovug`i 2) lekgorn zot 3) zagorsk 4) kornuel 5) nyugempshir 6)pervomaysk 7) plimutrok a) tuxum, go`sht b) tuxum olish uchun c) go`shti uchun
A) 1b, 2b, 3a, 4c, 5a, 6b, 7a B) 1b, 2b, 3a, 4c, 5c, 6a, 7c
C) 1b, 2b, 3a, 4c, 5a, 6a, 7c D) 1b,2a,3c,4a,5b,6a,7c
47.Qizilo`ngachning kengayib jig`ildonni hosil bo`lishi qaysi organizmlarga xos ?
1) oq planariya 2) triton 3) jigar qyrti 4) kaptar 5) baqa 6) yomg`ir
chuvalchangi 7) qizilto`sh 8) nereida
A) 1,2,3,8 B) 1,3,4,6 C) 4,6,7,8 D) 2,5,7
48.Qaysi qushlar kemiruvchilarning vakillari bilan oziqlanadi ?
1) laylak 2) kalxat 3) boyog‘li 4) tuyaqush 5) tuvaloq 6) ukki
7) chug‘urchiq
A) 2,3,5,6,7 B) 2,4,5,6 C) 2,3,4,5 D) 1,2,3,5,6
49.Yovvoyi o`rdak erkagining boshi …, bo`yni …, urg`ochisining tumshug`i …, dumi … rangda bo`ladi?
A) qizil, oqish, to`q-yashil, oq B) to`q-yashil, oqish, qizg`ish, oq C) to`q-yashil, oq, qizg`ish, oqish D) to`q-yashil, qizg`ish, oqish, oq
50.Qaysi qushlar daraxt kovagiga (a), yerga(b) uya quradi ?
1) chittak 2) o`rdak 3) turna 4) go`ngqarg`a 5) kaptar A) a-1,2, b-3 B) a-3,4, b-1 C) a-1, b-2,3 D) a-2,5, b-1