- Study guides, Class notes & Summaries

BIO 1407: Lab Exam 3 Review 2 Complete Questions With 100% Verified Answers Q.radula An organ covered with teeth that mollusks use to scrape food into their mouths Q.gastropoda what class does this organism belong to? Q.gastropoda Torsion in early development is present in the class... Q.Bivalvia what organism does this class belong to? Q.Umbo oldest part of the shell of a bivalve from which the shell grows Q.Cephal...

BIO 1407: Lab Exam 3 Review 1 Questions With 100% Verified Answers BIO 1407: Lab Exam 3 Review Q.Sponge Phylum Porifera, common name .None Phylum Porifera symmetry Q.None Phylum Porifera circulatory system Q.No true tissues Phylum Porifera # of germ layers Q.Spicules small, spike shaped particles of calcium carbonate or silicon dioxide that make up the skeleton of some sponges Q. Osculum, ostia, spongocoel, mesohyl ...