Use the Following Information to Answer the Questions Below

question 49

Multiple Choice

Use the following information to answer the questions below.
The most recently discovered phylum in the animal kingdom (1995) is the phylum Cycliophora. It includes three species of tiny organisms that live in large numbers on the outsides of the mouthparts and appendages of lobsters. The feeding stage permanently attaches to the lobster via an adhesive disk, and collects scraps of food from its host's feeding by capturing the scraps in a current created by a ring of cilia. The body is sac-like and has a U-shaped intestine that brings the anus close to the mouth. Cycliophorans are eucoelomate, do not moult (though their host does) , and their embryos undergo spiral cleavage.
-Which of these features is least useful in assigning the phylum Cycliophora to a clade of animals?

• A)having a true coelom as a body cavity
• B)having a body symmetry that permits a U-shaped intestine
• C)having embryos with spiral cleavage
• D)lacking ecdysis (moulting)

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