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Ch. 20 review
| Question | Answer |
|---|---|
| Invertebrates with jointed appendages | Arthropods |
| Material in an exoskeleton | Chitin |
| The largest group of arthropods | Insects |
| The type of metamorphosis that a butterfly goes through | Complete |
| Scientists who study insects | Entomologists |
| An eye that is composed of many independent lenses | Compound |
| Chambers in a grasshopper's heart | 8 |
| The order of 'Straight-winged insects' | Orthoptera |
| Any insect with a half-wing design and piercing-sucking mouthparts | A bug |
| Social insects | Ants, bees, wasps |
| Main body part of Arachnids | Cephalothorax |
| Helps a spider crush and cut food | Pedipalp |
| A spider's organ used to spin silk | Spinnerets |
| Pairs of legs per body segment on a centipede | 1 |
| Pairs of legs per body segment on a millipede | 2 |
| The hard outer shell on crustaceans | Carapace |
| The 'tail' on a crustacean | Uropod |
| The 'kidneys' in crawfish | Green glands |