| 单词 | Rickettsiales |
| 释义 | Rickettsiales (extremely rare) n WORD FAMILY Rickettsiales USAGE EXAMPLESBut what is the identity of the extant free-living bacterium that is most closely related to the mitochondria/Rickettsiales? Scientific American(Apr 16, 2012) n pleomorphic Gram-negative microorganisms Syn|Hyper order Rickettsiales animal order the order of animals |
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