The water vascular system of echinoderms . The water vascular system of echinoderms . is analogous to the gastrovascular cavity of flatworms moves water through the animal's body during suspension feeding functions in locomotion and feeding functions as a circulatory system that distributes nutrients to body cells is bilateral in organization, even though the adult animal is not bilaterally symmetrical

The water vascular system of echinoderms functions in locomotion and feeding.

Explanation:

Echinoderms have a unique vascular aquatic system called the ambulacral system.

The ambulacral system refers to a net of fluid-filled channels derived from the coelom with functions related to gas exchange, feeding, stimuli reception, and locomotion. This system acts as a hydro motor apparatus.

The opening to the exterior of this vascular system is through an opening known as madreporite. This structure is united to the circular channel that surrounds the animal´s mouth and from where five radial channels emerge and extend along each arm. Water runs through these structures and makes it possible the gas exchange, feeding, locomotion, and other functions. By hydrostatic pressure, little tubular feet are protruded and retracted and help the animal to move.