单词	oligochaete
释义	oligochaete /ˈɒlɪɡəkiːt / noun Zoology An annelid worm of the class Oligochaeta, such as an earthworm.For example, bacterial endosymbionts as found in the giant vent Pogonophora are also present in many meiofaunal oligochaetes, nematodes and flatworms.... Many polychaetes and oligochaetes, and even a few leeches, are burrowers that constantly rework the sediment through which they burrow; in addition, they may ingest and excrete large quantities of sediments or soils. Some information has been gathered on the expression of transcription factors associated with segmentation and regeneration in oligochaete annelids.
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