| A | B |
|---|
| crustacean | Arthropods with hard, crusty shells |
| gills | Most crustaceans breathe with |
| regeneration | The ability to grow hack a lost body part |
| carapace | A hard, protective single shell that shields the crab’s soft body |
| Pea crab | tiniest crab |
| Hermit crab | The crab whose shell covers only the front part of its body |
| swimmerets | The leglike limbs connected to a lobster’s abdomen |
| Spiny lobster | The lobster with no pincers |
| crayfish | A small, freshwater lobster |
| Brine shrimp | The shrimp that has “gill feet”; often used as aquarium food |
| Pistol shrimp | The shrimp with a stun gun |
| Cleaner shrimp | A shrimp that searches fro parasites and other harmful things on a fish |
| barnacle | The crustacean that cements itself to an object when it is young |
| Wood louse | The crustacean that lives in moist soil |
| Pill bug | The woodlouse whose nickname is the roly-poly |
| centipedes | Means “one-hundred footed”, has two legs per body segment, carnivore |
| millipedes | Means “one thousand footed”, four legs per body segment, herbivore |
| Earthworm’s castings | Valuable because they enrich the soil |
| setae | Stiff bristles on the body of the earthworm |
| mantle | The tissue that produces a mollusk’s shell |
