Water vascular system is present in which of the following phylum?
Porifera
Cnidaria
Ctenophora
Echinodermata
D.
Echinodermata
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. It is composed of canals connecting numerous tube feet.