Question
Biology Question on Classification Of Animals
Which of the following belongs to phylum coelenterata?
A
sea urchin
B
sea cucumber
C
sea anemone
D
sea horse
Answer
sea anemone
Explanation
Solution
Sea anemones belong to phylum coelenterata. They are marine, polypoid (sessile and cylindrical) organisms. Body is attached by flat basal disc to substrate. Free end of body is flattened to form oral disc, bearing a central mouth and several hollow marginal tentacles. Gastrovascular cavity is divided into compartments by vertical septa (mesenteries).