A) Cestoda
B) Turbellaria
C) Asteroidea
D) Echinoidea
Correct Answer: A
Solution :
The members of class-Cestoda (phylum-Platyhelminthes) are endoparasite in the alimentary canal of vertebrates. The body is generally divided into a few to many proglottids, eg, Taenia, Echinococcus. The members of class-Turbellaria (Platyhelminthes) are mostly free-living flatworms found in both fresh and marine waters. Class-Asteroidea of phylum-Echinodermata contains marine animals. Their body is flat and star-like. Usually, five arms are present which are not sharply marked off from the central disc, eg, Asterias. Echinoidea (class of phylum-Echinodermata) have marine animals. They have globular or disc-like body. Biting and chewing apparatus with teeth called Aristotles lantern, is present, eg, Echinus.
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