Question 5
Animal KingdomA characteristic of the phylum coelenterata is that
- A.most of them are marine
- B.they possess a gut with a single opening
- C.they possess numerous pores on their body
- D.they are bilaterally symmetrical
Show the answer and explanation
Answer: B (they possess a gut with a single opening)
Explanation
Coelenterates like Hydra have a sac-like gut with only one opening, the mouth; they are radially symmetrical, and pores are a feature of sponges.