Arthropod
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File:Spider black yellow.jpg
Spider in its web
An arthropod is an invertebrate with an exoskeleton, a segmented body and jointed limbs. Prominent groups of arthropods are the insects, crustaceans, arachnids (spiders and scorpions), and the trilobites.
Arthropods are classified under the phylum Arthropoda in the kingdom Animalia.