Ekologik piramidani osimlik-chigirtka-kaltakesak-lochin tashkil etadi.

76. (v19/20-108-24) Ekologik piramidani osimlik-chigirtka-kaltakesak-lochin tashkil etadi. II darajali konsumentning biomassasi 180 kg bolsa, III darajali konsumentning urnumiy biomassasi I darajali konsumentnikidan qanchaga (kg) kamligini aniqlang. A)2525 B)1782
C) 2453
D) 2775