Lantsetnik asosan qaysi belgilariga kor’a umurtqasiz hayvonlarga o’xshash bo’lihsini belgilang?
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ayirish sistemasi, nerv sistemasi
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muskullari, qon aylanish, sistemasi
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ovqat hazm qilish, nerv sistemasi
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ovqatlanish, qon aylanish, ayirish sistemasi
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tana bo’shlig’i, nerv sistemasi
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