Question
Biology Question on Kingdom Animalia
Water vascular system is present in which of the following phylum?
A
Porifera
B
Cnidaria
C
Ctenophora
D
Echinodennata
Answer
Echinodennata
Explanation
Solution
Water vascular or ambulacral system is a unique system of echinoderms, which helps mainly in locomotion. In fact, it is a modified part of coelom consisting of a system of canals containing sea water and amoeboid corpuscles.