Water vascular system is the characteristic of which group of the following: (a) Porifera (b) Ctenophora (c) Echinodermata (d) Chordata
Explanation Correct Option: (c) Echinodermata Water vascular system is a characteristic feature of the phylum Echinodermata. The water vascular system helps in the various function like locomotion, capturing of food, transport of food and respiration. Explanation Incorrect Option: (a) Porifera Porifera has canal system or water transport which is helpful in food gathering, respiratory exchange and waste removal. Explanation Incorrect Option: (b) Ctenophora In Ctenophora, the locomotion in carried with the ciliated comb plates for locomotion. Explanation Incorrect Option: (d) Chordata The chordates have well defined features for locomotion – tail or legs; respiration – gills or lungs; digestion – stomach. Final Answer Correct Option : (c) Echinodermata
