The _______ have bodies that are divided into two parts: a head region that bears two pairs of appendages modified to form mouthparts, and a trunk region with typically four pairs of walking legs.

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Chelicerates, such as spiders and scorpions, have bodies that are divided into a head region with modified mouthparts and a trunk region with walking legs. Crustaceans have multiple pairs of appendages, including specialized ones for swimming or manipulating food. Hexapods, or insects, have three distinct body regions and six legs. Nematodes, or roundworms, have long, slender bodies without distinct segments or appendages. Myriapods, such as centipedes and millipedes, have elongated bodies with many segments and multiple pairs of walking legs.

The _______ Have Bodies That Are Divided into Two Parts