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The subphylum Chelicerata (New Latin, from French chélicère, from Greek χηλή, khēlē "claw, chela" and κέρας, kéras "horn")[1] constitutes one of the major subdivisions of the phylum Arthropoda. It contains the sea spiders, arachnids (including scorpions, spiders, and potentially horseshoe crabs[2]), and several extinct lineages, such as the eurypterids.
Proteins are polymers, relatively large molecules made form many smaller molecules. Each protein molecules is built up from amino acids, smaller monomer molecules that join end to end to make the protein polymers molecule. <span />
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A. test the composite drug in a trial run
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