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Nematoda

A phylum of unsegmented helminths with fundamental bilateral symmetry and secondary triradiate symmetry of the oral and esophageal structures. Many species are parasites.

Year introduced: SIPUNCULIDA was heading 1980-1984

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Subheadings:

Tree Number(s): B01.050.500.500.294

MeSH Unique ID: D009348

Entry Terms:

  • Secernentea
  • Phasmidia
  • Sipunculida

See Also:

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