only 2 characters of all the phylum of invertebrates and classes of vertebrates
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VERTEBRATES AND INVERTEBRATES
INVERTEBRATEVERTEBRATEANIMALS WITHOUT A BACKBONEANIMALS WITH AN INTERNAL SKELETON MADE OF BONE ARE CALLED VERTEBRATES.CLASSIFICATIONTHEY ARE CLASSIFIED INTO 30 PHYLATHEY ARE CLASSIFIED INTO FIVE GROUPS, THAT IS, FISH, AMPHIBIANS, REPTILES, BIRDS, AND MAMMALS.KINGDOM
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