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单词 Copepoda
释义
Copepoda

Biology
  • A class of crustaceans occurring in marine and freshwater habitats. Copepods are usually 0.5–2 mm long and lack both a carapace and compound eyes. Copepods are important members of plankton: some are free-living, feeding on microscopic organisms; others are parasitic. A familiar freshwater genus is Cyclops, so named because the members have a single median eye.


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