Question

Water vascular system is present in _______.

Answer 1

Echinodermata:

1. Echinoderms comprise a distinct ambulacral or water vascular system, composed of a central ring canal and radial canals that stretch along each arm.
2. Through these structures, water circulates and facilitates the exchange of gases and also nutrition, predation, and locomotion.
3. The canals accompany podia, or tube feet, which are sucker-like appendages that these organisms can use to move, hold the substrate, or influence the objects.

Final answer: The water vascular system is present in Echinodermata.