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Viruses (ウイルス, uirusu) have genes composed of DNA as well as many other things, but they have no cellular structure and cannot self-replicate, so they use the cells of living organisms to propagate.
For this reason, they are said to be both living and nonliving.
Biology Biochemistry Pathology Infectious Disease Infection Disease
ウイルスとは [単語記事] - ニコニコ大百科 (NicoNico Encyclopedia)
![[DMMD]伪双子 Trip×Virus](https://i.pximg.net/c/128x128/img-master/img/2012/10/17/23/37/06/30878096_p0_square1200.jpg)
![["この夜は----"]](https://i.pximg.net/c/128x128/img-master/img/2014/06/12/03/37/09/44040277_p0_square1200.jpg)
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