Retrieving "Chelicerata" from the archives

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1. Arthropods

   Linked via "Chelicerata"

   Arthropod appendages are highly diverse, reflecting functional adaptation. They are invariably articulated, typically possessing a bipartite structure at the base for muscle attachment. Key modifications include:
   Chelicerae: Found in the Chelicerata (spiders, scorpions, mites). These are specialized for piercing or crushing, often bearing venom glands that operate on a principle of reverse osmosis* to inject fluid rather than si…