Across
- 3. Group including crabs lobsters and shrimp mostly aquatic
- 4. Tiny tubes used by terrestrial insects for breathing
- 6. The dramatic change in body form from larva to adult
- 7. Group including spiders and scorpions they have eight legs
- 8. The largest group of arthropods they have six legs
- 9. A body region where the head and thorax are fused together
- 12. Chemicals released to communicate with others of the same species
- 14. Powerful jaw-like mouthparts used for biting or grinding
- 17. The process of shedding an old shell to grow a larger one
- 18. Jointed structures like legs wings or antennae
- 19. Small openings on the abdomen that let air into the body
Down
- 1. The middle body section where legs and wings are attached
- 2. A body plan divided into distinct parts or sections
- 5. The hard protective outer shell made of chitin
- 10. The posterior rear section of an arthropod's body
- 11. Specialized fangs or pincers found in spiders and scorpions
- 13. The tough flexible carbohydrate that makes up the outer shell
- 15. Organs used by aquatic arthropods to breathe underwater
- 16. A type of eye with many individual lenses
- 18. Sensory organs on the head used for touch and smell