Which mollusk clade includes members that undergo embryonic torsion?

Question

Quizplus · Accepted Answer

Gastropods, such as snails and slugs, are known for undergoing embryonic torsion. This process involves a 180-degree twisting of the body during development, which results in the placement of the shell and organs on one side of the body. This distinguishes gastropods from other mollusks, such as bivalves (e.g. clams) and cephalopods (e.g. squid), which do not undergo torsion. Chitons do not undergo embryonic torsion either.

Which Mollusk Clade Includes Members That Undergo Embryonic Torsion