Answer Happy

7 Match the class with the correct organism or characteristic. Fasciola hepatica Dugesia parasitic flukes tapeworms free-living, carnivorous, aquatic flatworms oral and ventral suckers present; oral sucker used for feeding body consists of segment-like proglottids a. Class Turbellaria b. Class Cestoda c. Class Trematoda 8 The cuticles of flukes and tapeworms are highly resistant to enzyme action. Why is this feature an important evolutionary modification for endoparasites? 9 Why does the tapeworm lack a mouth, well-developed sensory structures, and a digestive system? 10 Briefly describe the life cycle of the sheep liver fluke, Fasciola hepatica.