单语范例（未经PONS编辑处理）
英语
- They form large schools close to the sea floor, and feed on plankton, especially krill, amphipods, small cephalopods, chaetognaths, and ctenophores.en.wikipedia.org
- If chaetognaths branched off from the protostomes before they evolved their distinctive protostome embryonic characters, they may have retained deuterostome characters inherited from early bilaterian ancestors.en.wikipedia.org
- Most chaetognaths are transparent and are torpedo shaped, but some deep-sea species are orange.en.wikipedia.org
- All chaetognaths are carnivorous, preying on other planktonic animals.en.wikipedia.org
- These may include fish, chaetognaths, krill, copepods, radiolarians, phytoplankton, nematocysts, ostracods and detritus.en.wikipedia.org
- The similarities between chaetognaths and nematodes mentioned above may support the protostome thesisin fact, chaetognaths are sometimes regarded as a basal ecdysozoan or lophotrochozoan.en.wikipedia.org
- Even so, several fossil chaetognath species have been described.en.wikipedia.org
- The absence of spines could simply mean that the fossils represent young organisms or that later chaetognath evolution involved paedomorphosis.en.wikipedia.org
- The two most recent studies to address the question of chaetognath origins support protostome affinities.en.wikipedia.org
- He published over 200 scientific articles on marine animals such as chaetognaths, ctenophores, and tunicates.en.wikipedia.org
是否要添加一些单词、短语或翻译？
请发送新条目。