Magnificent Molluska. By Divya Iyer Ethan Kupec. Mollusks: . Chitons Gastropods Bivalves Cephalopods . Anatomy . Chitons. Torsion- when the visceral mass of a gastropod rotates up 180 degrees. . Cephalopods. Bivalves.
By Divya Iyer
Cephalopods 180 degrees.
Campbell, N. (2008). 180 degrees. Biology(8th AP Edition ed.). San Francisco: Pearson.
Phylum Mollusca. (n.d.).University of Minnesota Duluth Welcomes You. Retrieved February 8, 2011, from http://www.d.umn.edu/biology/courses