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Acorn Worms

Definition of the noun Acorn Worms

What does Acorn Worms mean as a name of something?

Acorn worms is the vernacular name of the Enteropneusta, a class of Hemichordata.

Printed dictionaries and other books with definitions for Acorn Worms

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Google previewThe Facts on File Dictionary of Marine Science (2008)

by Barbara Charton, John Tietjen

Acorn worms are the most common living organisms in this group. The name Hemichordata was first proposed because the protruding mouthpart was assumed to be a notochord. They are characterized by a three-part body plan: a preoral ...

Google previewThe Encyclopedia of Animals (2004)

A Complete Visual Guide by Fred Cooke

Phylum Hemichcdata Hemicnordates (acorn worms) Phyhim Chaetognatha A/ row worms Phylum Oastrotncha Gastrotnchs Phylum Kmorttyncha Spiny<rown worms ...

Google previewA Dictionary of Zoology (2014)

by Michael Allaby

acorn worms See ENTEROPNEUSTA. acousticolateralis system The innerear region and * lateralline organs located in the skin, forming a sensory system that conveys environmental information to ...

Google previewA Dictionary of Geology and Earth Sciences (2013)

by Michael Allaby

Hemichordata (acorn worms) Phylum first encountered in the Middle 'Cambrian ' Burgess Shale, British Columbia, Canada. The acorn worms are related to the ' chordates, for although they lack a 'notochord, the gill slits are very similar to those ...

Google previewEncyclopedia of Tidepools and Rocky Shores (2007)

by Mark W. Denny, Steven Dean Gaines

acorn worms ECHINODERMATA (7000): sea stars, sea urchins, sea cucumbers, etc Acoelomorpha (210): acoels * nermtodermatids; formerly w fiatworms ...

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