Early Gastropods Had a Coiled Shell That Did Not Twist

Q14: Snails that lack gills are called "pulmonate"

Q15: What surface (e.g. ,dorsal,ventral,anterior,posterior)of the squid faces

Q16: Some prosobranchs have only one _ in

Q17: How has the problem of "fouling" been

Q18: The scaphopods have a shell that resembles

Q20: The cephalopod nervous system is best described

Q21: The circulatory system of cephalopods is more

Q22: When cephalopods hatch from their eggs,they are<br>A)trochophore

Q23: Cultured pearls are made by<br>A)cutting spherical balls

Q24: The Monoplacophora<br>A)lack a shell.<br>B)live in fresh water.<br>C)lack