| Front | Mollusks (Squids, Octupi, Slugs, Clams, Snails) |
|---|---|
| Back | - soft body protected by shell - open circulatory system with hemocoels or sinuses - bilateral symmetry - head-foot, visceral mass, and mantle body zones - tongue-like radula - most have gills and nephridia |
Tags: chapter_12
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