Molluscs Are

Q9: Tooth shells belong to the molluscan class<br>A)Bivalvia.<br>B)Cephalopoda.<br>C)Polyplacophora.<br>D)Gastropoda.<br>E)Scaphopoda.

Q10: The circulatory system of most molluscs is<br>A)hydraulic.<br>B)incurrent.<br>C)closed.<br>D)excurrent.<br>E)open.

Q11: The gastropod larval stage in which torsion

Q12: The 180<sup> <span class="ql-formula" data-value="\circ"><span class="katex"><span

Q13: The adaptation of bivalves to sedentary,filter feeding

Q15: The most complex molluscs belong to the

Q16: The tentacle of male cephalopods that is

Q17: Neopilina represents the molluscan class _,that was

Q18: In the bivalves,final digestion occurs<br>A)in the adductor

Q19: The shell of a mollusc is secreted