A) nematodes
B) cestodes
C) flat worms
D) trematodes
Correct Answer: C
Solution :
Turbellaria (L. turbella, a string) is a class of phylum Platyhelminthes. Turbeltarians are mostly free-living flat worms, majority aquatic (marine), presence of cilia, body) unsegmented, mouth ventral, suckers absent with tango,-chemo and photoreceptors. e.g., Planaaria (Dugesia), Bipalium etc. Trematoda (Gr. rrema hole; etdos form), class \[\text{II}\] of phylum Platyhelmimhes. Commonly called 'flukes', ecto or endoparasites, body without cilia, unsegmented with suckers and hooks, e.g., Fosciola, Schistosoma etc. Cestoda (Gr. kestos, girdle; eidos, form) is also one of the class of phylum Platyhelminthes. They are commonly called 'tapeworms' parasites without cilia and sense organs body segmented (pseudomeiamerism), digestive system absent. e.g. Taenia and Echinococcus.
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