biology 112 lab 13 KD
Terms
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- what are the three parts of a mollusk body plan?
-
a) the mantle
b) foot
c) visceral mass - a space through which water or air circulates
- mantle cavity
- gills are found here
- mantle cavity
- produces the shell
- mantle
- contains most of the internal organs such as the digestive, excretory, and reproductive systems
- visceral mass
- chitons belong in this class
- polyplacophora
- a hard grooved surface chitons use to scrape and grind food
- radula
- snails and slugs are included in this class
- gastropoda
- a process of the visceral mass of a snail rotating 180 degrees during development
- torsion
- includes trochophores and veligers
- planltonic larvae
- larvae that attach themselves to the gill or finds of a fish
- glochidia
- class that includes clams, mussels, and scallops
- bivalvia
- class that includes the squid, octopus, cuttlefish, and nautilus
- class cephalopoda