NEET BIOLOGY

Detailed explanation-1: -The water vascular system is a hydraulic system used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration. The system is composed of canals connecting numerous tube feet.

Detailed explanation-2: -Echinoderms possess a unique ambulacral or water vascular system, consisting of a central ring canal and radial canals that extend along each arm. Water circulates through these structures and facilitates gaseous exchange as well as nutrition, predation, and locomotion.

Detailed explanation-3: -Echinoderms have a characteristic coelomic water vascular system. This system is controlled hydraulically. It comprises a circumoral ring covering the esophagus which connects radial canals.

Detailed explanation-4: -Water vascular system is a unique characteristic of echinoderms. It helps in locomotion, the capture of food and respiration.