BIO 2135 Study Guide - Midterm Guide: Cephalization, Salivary Gland, Ovariole
18 Sep 2016
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Outer: the technical term for the mother-of-pearl layer of a mollusc shell is this layer nacreous. Instead of ancestral the a in ham should be aggregate animal: the spinning rod in the mollusc stomach is produced in this part of the stomach (two words) Style sac: the material that flows through a pneustome. Air: the most primitive molluscs, the aplacophorans are missing this trait shell, particulate food is embedded in a string of this before being pulled into the clam"s stomach. Ostiate: the spiral shell of the mollusc is a direct result of torsion. False: the radula in a mollusc sits on this cartilaginous tongue-like structure. Odontophore: this line on the inner surface of the clam shell marks where the mantle is attached to the shell. Pallial: contraction of the mantle musculature forces water out of this structure in cephalopods.
