Which of the following statement(s) is/are correct regarding phylum coelenterata? (i) They are aquatic, mostly marine, sessile or free swimming, radially symmetrical animals. (ii) They have a central gastro-vascular cavity with a single opening called hypostome. (iii) Digestion is extracellular and intracellular. (iv) Examples are Sycon, Spongilla and Euspongia.

Question

Which of the following statement(s) is/are correct regarding phylum coelenterata? (i) They are aquatic, mostly marine, sessile or free swimming, radially symmetrical animals. (ii) They have a central gastro-vascular cavity with a single opening called hypostome. (iii) Digestion is extracellular and intracellular. (iv) Examples are Sycon, Spongilla and Euspongia. (A) (i) and (ii) (B) (i) and (iv) (C) (i), (ii) and (iii) (D) All of these

Tardigrade Admin · Accepted Answer

Sycon, Spongilla and Euspongia are examples of phylum Porifera. Physalia, Adamsia, Pennatula, Gorgonia and Meandrina are examples of phylum coelenterata (Cnidaria)