| A | B |
| The three classes of the phylum Mollusks are... | 1. Gastropoda 2. Biuvalvia 3. Cephalopoda |
| The three classes of the phylum Annelida are... | 1. Polychaeta 2. Oligocheata 3. Hirudinea |
| Mollusks are... | soft-bodied invertabrate animal that is characterized by an internal or external shell, a foot, a mantle, and visceral mass. |
| Body plan of Mollusks consist of 4 basic parts... | 1. Foot 2. Mantle 3. Shell 4. Visceral Mass |
| Type of foot and kind of ____ are used to group mollusks into classes. | Shell |
| Snails and slugs are... | Herbivores |
| Herbivores have tongue-like structure called... | radula |
| Octopus, sea slugs, and squid are all... | carnivores |
| Carnivores use ____ _____ to eat theie prey. | sharp jaws |
| Clams, oysters and scallops are... | filter feeders |
| Filter feeders use gills to shift food such as ________ from the water. | Phytoplankton |
| Snails and clams have a ____ circulatory system. | open |
| Octupus and squid have a ____circulatory system. | closed |
| Solid waste are removed as ___ through the anus. | feces. |
| Nitrogen waste from cellular metabolism are removed by... | nephridia. |
| The class Gastropoda means ___1___. The class Bivalvia means___2___. And the class Cephalopoda means ___3___. | 1. Stomach-Foot 2. Two Shells 3. Head-Foot |
| In Gastropoda most have ____-____ shell or "valve" | one-sided |
| ____are the most common "shell-less" gastropoda. | Slugs |
| Most adult bivalves are... | sessile |
| The bivalve shells are made in the... | Mantle |
| Most cephalopodas have small, internal ___ or none at all. | shell |
| Only present day shelled cephalopods are... | Nautilus |
| Octopi have __ shells. | NO |
| Squids internal shell is thin, flexible supporting rod called... | pen |
| Cuttlefish have ___ ____ shell. | small internal |
| In addition to swimming or crawling, cephalopods can move by ___ ___. | Jet Propulsion. |