The vertebrates here include goldfish, dogs and kingsnakes. Vertebrates are chordate animals.
Vertebrate animals and Phylum Chordata
Vertebrates can be defined as animal species of animals within the phylum Chordata, which include all fish, amphibians mammals, birds and reptiles.
Vertebrate animals are a subdivision that forms the major part of the phylum Chordata.
The phylum Chordata is characterized by the presence of a notochord nerve cord, and a post-tail.
Learn more about Chordata here:
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