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An “ arthropod ” is an invertebrate animal that has an exoskeleton, a segmented body, and jointed appendages. It may help to remember that the term “ arthropod ” comes from the Greek words for “jointed foot.” Phylum Arthropoda is the largest phylum in the Kingdom Animalia and it includes insects. Arthropoda makes up more than two-thirds of all known species worldwide. The phylum Arthropoda characteristics include jointed appendages, a well-organized body structure with a segmented design, and a tough exoskeleton made of chitin. The Arthropoda body is divided into three sections: head, thorax, and abdomen. The Phylum Arthropoda examples include insects such as ants, and butterflies arachnids like ... Arthropod - Exoskeleton, Segmented, Jointed: Most arthropods are small animals; only aquatic forms can attain substantial sizes. The numbers and diversity of arthropods are enormous and they are found in almost all of the habitats that cover the Earth's surface. Arthropods are of great importance to humans in the form of food, medicine, and agriculture, and generally as major links in food chains. Arthropods (/ ˈɑːrθrəˌpɒd / AR-thrə-pod) [3][4] are invertebrates in the phylum Arthropoda. They possess an exoskeleton with a cuticle made of chitin, often mineralised with calcium carbonate, a body with differentiated (metameric) segments, and paired jointed appendages.
