C) lb, 2a, 3d, 4d D) lb, 2a, 3d, 4c
25. Quyidagi parazit chuvalchanglar qaysi organizmlarda parazitlik qiladi?
1) bo'rtma nematoda; 2) cho'chqa tasmasimon chuvalcliangi; 3) exinokokk; 4) mushuk ikki so'rg'ichlisi; 5) jigar qurti;
a) odam ichagida; b) it va yirtqich hayvonlaming ichagida; c) odam jigarida; d) o'simlikning yer usti qismida; e) o'simlikning yer osti qismida
A) 1-d, 2-c, 3-b, 4-c, 5-a
B) 1-b, 2-a, 3-b, 4-c, 5-e
C) 1-e, 2-a, 3-b, 4-c, 5-c
D) 1-e, 2-b, 3-a, 4-a, 5-c
26. . O'pkasi (a), traxeyasi (b), o'pka va traxeyasi (c) yordamida nafas oluvchi hayvonlarni aniqlang.
1) chayon; 2) iskabtopar; 3) butli o'rgimchak;
4) qandala; 5) biy; 6) suv shillig'i
A) a - 1, 6; b - 2, 4; c - 3, 5
B) a - 1, 2; b - 3, 4; c - 5, 6
C) a - 1, 2; b - 4, 6; c - 3, 5
D) a - 6; b - 2, 4; c - 1, 3, 5
27. Mozaik ko'rish quyidagi qaysi hayvonlarga xos?
1) dafniya; 2) krevetka; 3) biy; 4) qoraqurt;
5) o'rgimchak; 6) iskabtopar
A) 1, 2, 4, 5 B) 1,2,6 C) 3, 4, 5, 6 D) barchasi
28. So'rg'ichli chuvalchanglarning tasmasimon chuvalchanglardan asosiy farqini ko'rsating.
A) nerv sistemasining bo'lishi
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