270 PHYLA OF LESSER SIGNIFICANCE 



REVIEW QUESTIONS 



1. Why are the Ctenophora placed in a separate phylum from the Coelenterata ? 



2. How do the rotifers resemble both flatworms and roundworms? 



3. Describe the similarities and differences between the Brachiopoda and the 

 bivalved mollusks. 



4. What is the importance of Peripatus in establishing relationships between 

 other phyla ? 



5. Compare the Nemertea with the flatworms. 



6. Compare the Bryozoa with the Coelenterata. 



7. Where do the rotifers get their name? 



