Coelomates are animals that possess a coelom, which is a fluid-filled body cavity located between the digestive tract and the outer body wall. This body cavity allows for the development of complex organs and systems, providing more space for organ growth and movement. Coelomates include a wide variety of organisms, such as mollusks, arthropods, and chordates. The presence of a coelom is significant for the overall organization and function of coelomate bodies. It enables better circulation of nutrients and waste, as well as greater flexibility and support for internal structures. This characteristic distinguishes coelomates from acoelomates, which lack a body cavity, and pseudocoelomates, which have a partially formed coelom.