acorn worm

acorn worm: see Hemichordata.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

More on acorn worm from Fact Monster:

  • Hemichordata - Hemichordata Hemichordata , small phylum of marine invertebrates closely related to both the ...
  • Chordata - Chordata Chordata , phylum of animals having a notochord, or dorsal stiffening rod, as the chief ...
  • Encyclopedia: Zoology: Invertebrates - Encyclopeadia articles concerning Zoology: Invertebrates.

See more Encyclopedia articles on: Zoology: Invertebrates

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