Part 1: Arthropod Characteristics & Crustaceans

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Across
  1. 2. Individual lens unit in a compound eye
  2. 3. Type of eye with many facets
  3. 7. Hearing structure in arthropods
  4. 11. Opening that allows air into the body
  5. 13. Fused head and thorax region
  6. 15. Organism that lives on or in a host
  7. 22. Jointed structure extending from the body
  8. 23. Type of circulatory system in arthropods
  9. 24. Respiratory structure used by aquatic arthropods
  10. 27. Middle body region where legs attach
  11. 29. Excretory structures in crustaceans
  12. 30. Function of the exoskeleton that shields tissues
  13. 32. Plant-eating organism
  14. 33. Movement of nutrients and wastes through the body
  15. 35. Segmented invertebrate with jointed appendages
Down
  1. 1. Animal with a true body cavity
  2. 4. Body region containing mouthparts and eyes
  3. 5. Tough outer covering of arthropods
  4. 6. Material that makes up the exoskeleton
  5. 8. Process of shedding the exoskeleton
  6. 9. Excretory tubules in most arthropods
  7. 10. Image formed by compound eyes
  8. 12. Arthropod group with two pairs of antennae
  9. 14. Chemical communication signal
  10. 16. Posterior body region containing digestive organs
  11. 17. Function of the exoskeleton that provides structure
  12. 18. Organism that eats plants and animals
  13. 19. Development pattern where the mouth forms first
  14. 20. Animal without a backbone
  15. 21. Repeating body unit in arthropods
  16. 25. Biting and chewing mouthparts
  17. 26. Type of symmetry with two mirror-image halves
  18. 28. Air tubes that carry oxygen in insects
  19. 31. Meat-eating organism
  20. 34. Saclike respiratory structure in arachnids