Flukes Are Divided into Monogenea and Digenea

question 45

Multiple Choice

Flukes are divided into Monogenea and Digenea. Monogenea have a posterior holdfast with hooks, clamps, and suckers; Digenea have suckers but never hooks and clamps. Monogenea have only one host in the life cycle, and usually live on gills or skin of fish and amphibians; Digenea have at least two hosts and often three or more, and are named because they have two reproductive states in their life cycle (an adult and intramolluscan phase) . From what you now know, the blood fluke Schistosoma would therefore be

• A) an endoparasite and Monogenean.
• B) an endoparasite and Digenean.
• C) an ectoparasite and Digenean.
• D) an ectoparasite and Monogenean.

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