An invertebrate animal is called as an arthropod and it has a segmented body, external skeleton, and paired jointed appendages. Arthropods belong to Euarthropoda phylum that includes arachnids, crustaceans, myriapods, and insects. They are also characterized by cuticle and joined limb.

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Chapter 42.3, Problem 6SAQ

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An invertebrate animal is called as an arthropod and it has a segmented body, external skeleton, and paired jointed appendages. Arthropods belong to Euarthropoda phylum that includes arachnids, crustaceans, myriapods, and insects. They are also characterized by cuticle and joined limb.

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