| A | B |
|---|
| molting | the shedding of the exoskeleton |
| spinnerets | spiders use these to make silk webs |
| Cephalo-thorax | anterior body region of arachnids |
| swimmerets | crayfish use these appendages to swim |
| chitin | the exoskeleton is made of this material |
| pedipalps | tarantulas use these to sense the environment |
| ovipositor | female crickets use these to lay eggs |
| spiracles | openings to air tubes on sides of insects |
| typanium | hearing organ on a grasshopper |
| rash, fever | symptoms of lyme disease |
| cheliped | claw of a crayfish |
| 3 | number of body segments an insect has |
| 10 | number of jointed appendages a crustacean has |
| 2 | number of body segments of an arachnid |
| metamorphosis | changes insects go through |
| nymph | young insect that looks like an adult |
| incomplete metamorphosis | egg, nymph, adult |
| uropod | "fan-shaped" tail of a crayfish |
| antennae | help a crustacean feel |
| wings | insects do not always have them |
