The phylum Cycliophora are 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 saclike and has a U-shaped intestine that brings it'sanus close to the mouth. Cycliophorans are coelomates, do not molt (though their host does), and their embryos undergo spiral cleavage. Basing your inferences on information in the paragraph, to which clades should cycliophorans belong? I answered it was b. Eumetazoa and Lophotrochozoa. I just have a difficult time reading the trees and I wanted to check :)
a.Metazoa and diploblasts
b. Eumetazoa and Lophotrochozoa
c. Deuterostomia and Ecdysozoa
d. Deuterostomia and Lophotrochozoa
e. Bilateria and Echinodermata
B is correct choice. Eumetazoan means true metazoan includes all animals except sponges.
Spiralia belongs to the lophotrochozoa showing spiral cleavage and mouth 1st coelomates .
The phylum Cycliophora are tiny organisms that live in large numbers on the outsides of the...