Question

'Water-vascular' system is found in

• A. Sea anemone
• B. Sea-cucumber
• C. Sea-pen
• D. Sea-horse

Hint:

The water vascular system can be referred to as a hydraulic system used by echinoderms, such as sea stars and sea urchins, helping in locomotion, food and waste transportation, and respiration. The system is composed of canals connecting numerous tube feet.

Answer 1

The Correct Option is B

'Water-vascular' system is found in sea-cucumber.

The water vascular system is referred to as a hydraulic system typically used by echinoderms for locomotion, food and waste transportation, as well as respiration. Echinoderms are marine invertebrates that include sea urchins, starfish, brittle stars, and sea cucumbers. The water vascular system is a division of the coelom, which is the most distinctive feature of echinoderms. It is a system of canals and appendages of the body wall. It is also termed an ambulacral system, which functions as a means of locomotion. It comprises a madreporite or sieve plate, stone canal, water ring or ring canal, radial canals, and podia or tube feet.

Therefore, the correct answer is option B.