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Poyasining yog’onligi 4-6 metrga yetadigan o’simlik?


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42.Poyasining yog’onligi 4-6 metrga yetadigan o’simlik?
A)yong’oq B)o’rik
C)chinor D)qayrag’och
43.Poyaning ko'ndalang kesimini tartib bilan ko'rsating?
1)epiderma
2)po’st parenximasi
3)lub(floema)
4)kambiy
5)yog'ochlik(ksilema)
6)o'zak
A)3,5,6,4,2,1
B)1,2,4,3,5,6
C)1,2,3,4,5,6
D)6,5,4,3,2,1
44.Ildiz tizimining o’lchami va tuzilishi nimaga bog’liq?
a)o’simlik turiga
b)ildizning shohlanishiga
c)qo’shimcha ildizlarga
d) tuproq unumdorligiga
e)oziq moddaga
f)ildiz turlariga
A)a, c, d, e B)a, b, c, d
C)a, d, f, e D)b, c, d, e
45.Bahorda dastlab gul kurtaklaridan gul yozilib, so'ngra barg kurtaklaridan barg chiqadigan o'simliklar?
a)o'rik b)nastarin c)terakd) bodom e)olxo'ri f)atirgul
k)olcha h) shaftoli j)jiyda
A)a, b, c, d,e, fB)c, d, e, f, j, a
C)a, d, e, k, hD)a, c, d, e, k, h
46.Besh yoshli archaning bo'yi?
A)10-15 sm B)5-15 sm
C)15-20 sm D)16-18 sm
47.Organik moddalarning o'simlik bo'ylab harakatlanishida qaysi qavat muhim rol o'ynaydi?
A)kambiy
B)yog’ochlik
C)lub qavati
D)o’zak
48.Poyaning qaysi qavati floema deb ataladi?
A)kambiy B)lub
C)epiderma D)o’zak hujayralari


49.Sekvayadendronning pastki qismi yo'g'onligi qancha?
A)50 metr B)45 metr
C)55 metr D)46 metr


50.Shoxlanmagan poya?
A)saksovul B)palma
C)izen D)piyoz


51.Poyalar tuzilishiga ko’ra necha xil bo’ladi?
A)yog’och va o’t poya
B)oddiy va murakkab
C)shohlangan va shohlanmagan
D)yumshoq va yengil



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