| A | B |
|---|
| Arthropod | Has segmented body, exoskeleton with chitin, and jointed appendages |
| Trilobite | Sea dwelling organism belonging to the subphylum arthropod |
| Chelicerate | Arthropod characterized by a two part body and chelicerae |
| Crustacean | Arthropod characterized by stoney exoskeleton |
| Chitin | Complex carbohydrate found in arthropd's exoskeleton |
| Molt | Shedding of an exterior layer of skin |
| Pupa | Resting place in metamorphis were adult parts are formed |
| Metemorphis | A series of stages of life |
| Arachnid | Includes spriders |
| Mandible | Mouth part designed for bitting |
| Pheromone | Chemical message that affects behavior |
