The respiratory organ of many aquatic invertebrates, widely varied in form but typically consisting of sheets or filaments of tissue over which…
| 单词 | θ32351 |
| 释义 | the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > division Vermes > [noun] > member of (worm) > respiratory organs (1) gill1681 The respiratory organ of many aquatic invertebrates, widely varied in form but typically consisting of sheets or filaments of tissue over which… |
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