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by Jillifish on March 9th, 2005

Jillifish

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What are vertebrates?

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  • by Jillifish on March 9th, 2005

    Jillifish

    Members of the subphylum Vertebrata, a primary division of the phylum Chordata that includes the fishes, amphibians, reptiles, birds, and mammals, all of which are characterized by a segmented spinal column and a distinct well-differentiated head.

    (source: The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2000 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.)

    Comments

    • vertebrates are all those animals that have an internal skeleton and a back bone. back bone is also called vertebra.

      Anonymous

      by Anonymous on June 18th, 2008

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