Abstract
Barcha ko’p hujayralilar koloniya bo’lib yashovchi bir hujayralilardan kelib chiqqan. Bu bo’yicha juda ko’p olimlar ish olib borgan. Gastreya, Fagotsitella, hamda Sellyurizatsiya nazariyalariga asos solingam.
References
Umurtqasizlar zoologiyasi O. Mavlonov, Sh. Xurramov, X. Eshova
‘’Umurtqasizlar zoologiyasi’’ Edvard E. Ruppert, Richard S. Foks, Robert, D. Bams
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