Arthropods, which make up the phylum Arthropoda, is the largest group of invertebrates (animals without a vertebral column) consisting of well over 80 percent of all animals.
a major taxonomic division of living organisms that contain one or more classes. An example is the phylum Arthropoda (insects, crustaceans, arachnids, etc., and myriapods) Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005 Want to thank TFD for its existence? Tell a ...