| Fans that move food to mouth | | |
| Tongue with teeth for scraping food | | |
| Collects and removes nitrogen waste | | |
| Makes bile and absorbs nutrients | | |
| Coelom space surrounding a clam's heart | | |
| Collects and removes digestive waste | | |
| Space inside a clam shell | | |
| Pigment cells that help an octopus blend in | | |
| Exchange gases with water | | |
| General term for reproductive organs | | |
| Pumps hemolymph | | |
| Layer that produces the shell in a clam | | |
| Ciliated larva seen in aquatic mollusks | | |
| Bump on a clam shell | | |
| Body area containing the heart, digestive, reproductive, and excretory organs | | |