Marine Biology Review Questions (CHAPTER 14)

What is the advantage of a radially symmetrical body plan? What is a disadvantage of such a body plan?

What is the function of collar cells in sponges?

What function does polymorphism serve in some cnidarians?

What is the major difference in overall body symmetry between flatworms and cnidarians?

What is the main feeding mode of nemerteans?

What is the distinction between locomotory mechanisms in polychaetes and oligochaetes?

What is the distinguishing characteristic of nutrition in the Pogonophora?

What are three means by which different bivalve mollusks may feed?

What structure is used by gastropods to scrape, puncture, or tear apart prey?

What is the disadvantage of the stiff exoskeleton in arthropods?

What are some of the different life habits of crustaceans?

What trait do the brachiopods, phoronids, and bryozoans share?

What general trait unites the members of the phylum Echinodermata?

How do echinoderms generally move about?

What characteristics unite sea squirts with the vertebrates?

Why is the Cambrian period special in the history of animal life?

What are the differences between protostomes and deuterostomes?

Under what ecological-evolutionary conditions might you find an animal that is barely recognizable morphologically as a member of its taxonomic group?

How do octopus detect their prey by means of taste?

Does a gastropod have to have a shell?