difference between annelida arthopoda porifera and coelenterata in a tabular form
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There are over 30 phyla dedicated to invertebrates. All but one of the animal phyla are exclusively invertebrates. The phylum Chordata is divided into three subphyla, two of which are made up of invertebrates. The third subphylum, Vertebrata, includes the vertebrate animals. In addition, there are a great many invertebrate species that are extinct. Evidence of their existence is found only in the fossil record. The major exclusively invertebrate phyla that are still in existence today
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