Quyidagi organizmlarning qaysi birlari qon aylanish sistemasiga ega emas?
1)oq planariya; 2)yomg’ir chuvalchangi; 3)lantsetnik; 4)o’rgimchak; 5)askarida; 6)qoramol soliyotri; 7)suv shilliqqurti; 8)exinokokk; 9)baqachanoq; 10)daryo qisqichbaqasi; 11)jigar qurti
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1,5,6,8,11
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1,3,5,7,9,11
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2,4,6,8,10,11
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1,5,8,10,11
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1,5,6,7,8,11
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