any invertebrate of the phylum Arthropoda, having a segmented body, jointed limbs, and usually a chitinous shell that undergoes moltings, including the insects, spiders and other arachnids, crustaceans, and myriapods.
Arthropods are animals that have a hard outside covering called an exoskeleton. Scientists have identified more than a million different types of arthropod, and there may be many more. Insects, crustaceans, and arachnids are three of the largest arthropod groups. Arachnids include spiders and mites.
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Answer:
any invertebrate of the phylum Arthropoda, having a segmented body, jointed limbs, and usually a chitinous shell that undergoes moltings, including the insects, spiders and other arachnids, crustaceans, and myriapods.
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Explanation:
Arthropods are animals that have a hard outside covering called an exoskeleton. Scientists have identified more than a million different types of arthropod, and there may be many more. Insects, crustaceans, and arachnids are three of the largest arthropod groups. Arachnids include spiders and mites.
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