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What exactly is an arthropod?

April 26, 2017arthropod

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What exactly is an arthropod?

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Arthropoda is one of many phyla (singular: phylum) in the kingdom Animalia. The principal characteristics of an arthropod are: • A segmented body • Bilateral symmetry • Hard exoskeleton • Paired segmented appendages (jointed legs) Within the phylum Arthropoda are many different classes of arthropods. For example, spiders, scorpions, and ticks are in the class Arachnida, and horseshoe crabs are in the class Merostomata. Insects are classified as Hexapoda.