Arthropod Review

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Across
  1. 3. — The body region of a crayfish divided into six segments.
  2. 5. — Appendages that create water currents and help with reproduction.
  3. 8. — The process of shedding an old exoskeleton and growing a new one.
  4. 9. — The hard protective shell covering a crayfish's cephalothorax.
  5. 12. — A hard outer covering that protects and supports the body.
  6. 14. — An animal with jointed appendages and a hard outer covering.
  7. 16. — An organ involved in the digestion of food.
  8. 17. — Organs used by most crustaceans to breathe.
  9. 19. — Jaw-like mouthparts used to crush and chew food.
Down
  1. 1. — The subphylum of arthropods that includes crabs, lobsters, and shrimp.
  2. 2. — Mouthparts that help hold and manipulate food.
  3. 4. — A system in which blood is not enclosed in vessels.
  4. 5. — Division of the body into repeating sections.
  5. 6. — The claws of a crayfish, used for catching prey and defense.
  6. 7. eyes — Eyes made of many individual lenses that detect light and movement.
  7. 10. — The body region formed by the head and thorax of a crayfish.
  8. 11. — The digestive organ that receives food from the digestive gland.
  9. 13. — The tube that carries food from the mouth to the stomach.
  10. 15. — The rear body part of a crayfish that helps form the tail fan.
  11. 18. — A substance that makes up the main protective layer of an arthropod's exoskeleton.