53. XVIII asirde joq bolip ketken haywanlardi aniqlań.
A) Dodo, qaltali qasqir B)Dront, Tur C) Jabayi qaramal, sayaxatshi kepter D) Dront, junli karkidon
54. Mezozoy erasinin yura dawirindegi hukimranliq turlerdi tabin. 1)kordait, 2)plaun, 3)pixta, 4)baobab, 5)psilofit, 6)baobab, 7)sagovnik, 8)arsha, 9)zarafshan arsha, 10)ginko biloba. A)1,3,4,10 B)1,5,6,8 C)4,5,9,10 D)2,3,4,5
55. Jer bawirlawshilardiń turleri kóbeygen (a), Jer bawirlawshilar rawajalang'an (b), Daslepki jer bawirlawshilar payda bolgan (c) ham jer bawirlawshilar (dinozavrlar) hukimranliq qilgan(d) dawirlerdi aniqlan. 1)por 2)yura; 3)perm; 4)trias; 5)taskómir
A)a-4; b-3; c-5; d-2 B) a-4; b-2; c-5; d-3 C) a-2; b-3; c-5; d-4 D) a-5; b-3; c-1; d-2
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