| A | B |
|---|
| chitin | hard material that makes up exoskeleton |
| exoskeleton | outer covering |
| molting | shedding of outer covering |
| tympanum | hearing organ of grasshopper |
| social insects | live in colonies |
| larva | wormlike stage of insect development |
| cocoon | protective covering around pupa |
| pupa | resting stage during metamorphosis |
| metamorphosis | changes in insect development |
| arachnids | have eight legs |
| crustaceans | lobsters and crabs |
| drones | bees that fertilize eggs |
| queens | bees that lay eggs |
| workers | bees that build and protect hives |
