Across
- 3. Early arthropods from the Cambrian period were called ______.
- 6. Tiny distant relatives of arthropods known for surviving extreme conditions are ______.
- 13. Social insects communicate using chemical signals called ______.
- 14. Millipedes have two pairs of legs per ______.
- 16. Horseshoe crabs have an ______ lineage.
- 17. In incomplete metamorphosis, the young form is called a ______.
- 18. Two main body regions of a spider are the cephalothorax and ______.
- 20. Silk-producing structures in spiders.
- 24. Ticks feed on ______.
- 25. Spiders use ______ digestion outside their bodies.
- 26. Insect legs can be adapted for ______ (like grasshoppers).
- 27. A nymph grows by shedding its skin in a process called ______.
- 30. Hairlike sensory structures help insects with ______.
- 32. Millipedes are ______ (plant-eaters).
- 33. Spider mouthparts are called ______.
- 34. Fourth stage of complete metamorphosis.
Down
- 1. Insects have sensory structures called ______ on their heads.
- 2. A major benefit insects provide to plants.
- 4. Insects have three pairs of ______.
- 5. The honeybee dance used to communicate is called the ______ dance.
- 7. Insects have three body regions: head, thorax, and ______.
- 8. Insects can have compound and ______ eyes.
- 9. Centipedes have one pair of legs per ______.
- 10. Spiders are ______ (meat-eaters).
- 11. Scorpions are mainly active at ______.
- 12. The outer covering of insect wings is made of ______.
- 15. Centipedes use poison ______ to capture prey.
- 19. Mouthparts may be adapted for drinking ______.
- 21. Third stage of complete metamorphosis.
- 22. Hearing structures in insects are called ______ organs.
- 23. Insects can cause crop ______.
- 25. First stage of complete metamorphosis.
- 28. Many insects have ______ for flying.
- 29. Second stage of complete metamorphosis.
- 31. Chemical receptors are found on antennae, mouthparts, and ______.