4.10. Ekotizim mahsuldorligi
.....................................................63
4.11. Ekologik piramidalar
........................................................64
4.12. Trofik zanjirlarda energiyaning hosil bo’lishi
...............65
4.13. Negentropiya
.......................................................................65
4.14. Yer energetikasida insonning o’rni
..................................66
5- ma’ruza. EKOTIZIMLARDA MODDALAR
AYLANISHI
…….……..............................................................68
5.1. Global aylanish
.....................................................................68
5.2. Katta aylanish
.......................................................................68
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