Arthopod Layered Crossword

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Across
  1. 1. the substance that makes up exoskeletons
  2. 5. the time between two phases of molting
  3. 7. a shell around the exterior of most arthropods
  4. 11. A chemcial being released into the atmosphere by a living being to create a hormonal response
  5. 12. a subphylum that contains animals like centipedes and millipedes
  6. 13. when the arthropod becomes an adult through two or more phases
  7. 15. contains the spiders in the phylum
  8. 16. The fused head of an invertebrae and their thorax
  9. 17. an external respiratory opening found on insects and fish
  10. 18. any spieces that resides in a freshwater area
  11. 19. the excretory gland of a crustacean
  12. 20. added or attached to something more important
  13. 22. A part of the phylum made up of mostly water animals with tough exoskeletons and pincers
Down
  1. 2. a subphylum that makes up animals like crustaceans
  2. 3. when an animal is shedding old/dead skin or hair
  3. 4. Where the reproductive parts of a plant or invertebrate are in separate creatues
  4. 6. an arthropod made up of several legs on each side for each somite
  5. 8. cut up/divided into different segments
  6. 9. a simple, little eye found in many types of invertebrae
  7. 10. the age immediately after being born for an arthropod
  8. 14. The phylum of invertebraes
  9. 18. a type of invertebrae that goes through gradual metamorphosis
  10. 21. the stage between an insect being a larvae and adult, usually encased in a chrysalis