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Arthropods Arthropods are in the Animalia KIngdom, Ecdysozoa Superphylum, and in the Arthropoda Phylum.
Arthropods are animals such as spiders and crabs, and more. Arthropods live in marine, freshwarter, terrestrial, and aerial environments and range in size from microscopic oganisms to the largest living arthropod, the Japanese Spider Crab. Arthropods have a heart that is on the back side of an animal's body and a nervous system that is on the belly side. Arthropods also have a hard exoskeleton. There are different types of Arthropods such as the Aquatic and the Terrestrial Arthropods.
Classification of Arthropods and Examples of each class are:
| Class |
Living/Dead; Example |
| Trilobites |
extinct; contained numerous marine animals |
| Chelicerates |
living; spiders, mites, scorpions |
| Myriapods |
living; millipedes,centipedes |
| Hexapods |
living; insects and three small orders of insect-like animals |
| Crustaceans |
living; marine animals such as lobsters, crabs, barnacles |
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