Spirostomum

Spirostomum cell division (binary fission)

Spirostomum is a genus of free-living ciliate protists, belonging to the class Heterotrichea. Species of Spirostomum are found in both salt and fresh water. All are elongated, flexible and highly contractile. Although unicellular, members of some species can grow as long as 4 mm (0.16 in).

单词	Spirostomum
释义	Spirostomum 英语百科 Spirostomum Spirostomum is a genus of free-living ciliate protists, belonging to the class Heterotrichea. Species of Spirostomum are found in both salt and fresh water. All are elongated, flexible and highly contractile. Although unicellular, members of some species can grow as long as 4 mm (0.16 in).
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