Arthropod means "jointed legged creatures." All animals in the Artrhopod Phylum have jointed legs and exoskeletons. This means their skeleton is on the outside of their bodies. The Arthropod Phylum is split into Classes. Several Classes are listed below:
Insecta Class: Called "insects." These animals have six legs, two antennae, and three main body sections: head, thorax, abdomen. Most insects have two sets of wings. Insects have either a four-stage life cycle (egg, larva, pupa, adult) or a three-stage life cycle (egg, nymph, adult). Includes: Bees, Wasps, Flies, Dragonflies, Butterflies, Moths, Beetles, Grasshoppers, Crickets, Mantids, Ants, Termites, and Cicadas.
Arachnida Class: Called "arachnids." These animals have eight legs, no antennae, and two main body sections: cephalothorax and abdomen. Includes: Spiders, Ticks, Mites, and Scorpions.
Crustacea Class: Called "crustaceans." These animals have ten legs, four antennae, and two main body sections: cephalothorax and abdomen. Most live underwater. Includes: Crayfish, Water Fleas, Shrimp, and Crabs.
Chilopoda Class: Called "chilopods." These animals have long, flattend bodies with many segments. Each segment has one pair of legs. Includes: Centipedes.
Diplopoda Class: Called "diplopods." This animals have long, rounded bodies with many segments. Each segment has two pairs of legs. Includes: Milllipedes.
To learn more about each Class, click the links below: