О е. X o ‘j a n a z a r o V, М. M ir s o V u r o V, Т. N o r b o b o y e V a ekologiya va barqaror taraqqiyot ta’limi

Biological contamination - penetration into ecosystem 
generation in a large number of species alien to it. Pollution by 
micro-organism is also called bacteriological or microbiological 
impurity.
Biologik soat - organizmlarda tabiat hodisalari va fasllaming 
o ’zgarishi bilan bog’liq bo'liq bo’lgan fiziologik ,biyokimyoviy 
o ’zgarishlar.
Biological clock - physiological, biochemical changes in 
organisms connected with natural phenomena and seasons. 
Biomassa [yun. 
“bios
’’-hayot, 
“massa
”-quyma, palaxsa, parcha ]
- faol tirik moddaning maydon yoki hajm birligiga nisbatan 
miqdori; massa birligida ifodalanadi.
Biomass [greek. 
“bios
’’-life, 
“massa
’’-ingot, clump, chunk] -
quantity of a living and functioning matter expressed in a unit of 
weight measure with regard to a unit of square or cubic measure. 
Biosfera [yun. 
“b io s
’’-hayot, 
“sphaira”-
shar] - yer qobig’idan 
(sferalaridan) biri bo’lib, uning tarkibi va energetikasi asosan 
tirik modda faoliyati bilan belgilanadi. E. Zyuss tomonidan 1875- 
yil kiritilgan bu atama V. I. Vemadskiyning ilmiy izlanishlari 
natijasida yer sayyorasining butun sirtini anglatadigan bo’ldi.
B.troposfera, litosfera va gidrosferani o’zichiga qamrab oladi; 
qalinligi 30-40 km. sin. 
Ekosfera .
Biosphere - [greek. 
“b io s ’’-life, “sphaira”-
ball] - one of the 
layers of the Earth shells (sphere) both a composition and energy 
of which in their significant features are determined by the 
activity o f a living matter. This term introduced by E. Zyuss in 
1875, on the results o f works by V.I,Vernadsky, 
became a
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EKOLOG1YA
symbol of all outward area of the planet of earth B. includes 
troposphere, hydrosphere, rock sphere with power of 30-40 km. 
syn.