Question
Biology Question on Kingdom Animalia
'Water-vascular' system is found in
Sea anemone
Sea-cucumber
Sea-pen
Sea-horse
Sea-cucumber
Solution
'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.