respiration, circulation, movement, and feeding
Echinodermates possess a water vascular system.
water vascular system
When studying living creatures, it is important to know the details of their lives. Water is the liquid that fills an echinoderms vascular system.
through the tube feet
The madreporite is the structure that is part of an echinoderm's water vascular system. It acts as a sievelike structure that allows water to enter the system and is connected to the internal canals of the water vascular system.
Echinoderms :)
Closed. It also has a water-vascular system. :)
respiration, circulation, movement, and feeding
The water vascular system is a hydraulic system used by echinoderms, such as starfish and sea urchins, for locomotion, food and waste transportation, and respiration.
Echinoderms do not have a respiratory system similar to a person's. Instead, they have a water vascular (otherwise known as "ambulacral") system, made up of a network of canals to move water. This method accounts for the creature's gas exchange, feeding, and locomotion. Because of this characteristic, echinoderms lack gill slits.
Echinoderms are invertebrates with an internal skeleton and a system of fluid-filled tubes called water vascular system.
Water Vascular System -e2020