A segmented body plan is characterized by the division of the body into repetitive segments, each of which may have similar or specialized structures. This arrangement allows for greater flexibility and mobility, as segments can move independently. An example of a phylum that includes animals with segmented bodies is Annelida, which consists of earthworms and leeches. Additionally, the phylum Arthropoda, which includes insects and crustaceans, also exhibits segmentation in its body structure.
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