Biologiya fanidan nazorat ishi va labaratoriya daftari

4-masala.
Produtsentning biomassasi – 700 000 kg, qarchig‘ayning biomassasi – 7 kg.
Qarchig‘ay qaysi tartib konsument bo‘la oladi?
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5-masala.
O‘simlik quyon tulkidan iborat oziq zanjirida o‘simlik biomassasi 100 t. Agar 
bir tulkining massasi 10 kg bo‘lsa, tulkilar populyatsiyasidagi individlar sonini aniqlang. 
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Xulosa 
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