The 180 ^$\circ$ ,counterclockwise Twisting of the Visceral Mass,mantle,and Mantle Cavity of Gastropods

question 12

Multiple Choice

The 180 ^$\circ$ ,counterclockwise twisting of the visceral mass,mantle,and mantle cavity of gastropods is called

• A)contortion.
• B)torsion.
• C)helixing.
• D)coiling.
• E)operculating.

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