Water vascular system is characteristic of

Correct option is C

Correct Answer: C. Echinodermata

Explanation:

• The water vascular system is a unique feature of Echinodermata (e.g., starfish, sea urchins).

• It is a network of fluid-filled canals used for locomotion, feeding, gas exchange, and excretion.

Information Booster:

• The system operates through hydraulic pressure, with tube feet helping in movement and food handling.

• It includes structures like madreporite, stone canal, ring canal, radial canals, and tube feet.

Additional Information:

• A. Porifera

  • Have a canal system, not a water vascular system.

• B. Ctenophora

  • Use comb plates (ctenes) for movement, lack vascular systems.

• D. Chordata

  • Have a closed circulatory system, no water vascular system.