Members of the lineage ____ include slugs and snails. Most have a shell, but some have no shell. Most

undergo torsion during development, a twisting of their visceral mass that leads to placement of their
anus practically over their heads.



a. Cephalopoda
b. Polyplacophora
c. Bivalvia
d. Gastropoda
e. Scaphopoda


D

Biology & Microbiology

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