CRABS AND SCORPIONS

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Across
  1. 2. Invertebrate with jointed limbs and exoskeleton
  2. 4. Venomous segment at scorpion's tail
  3. 7. Relating to water habitat, like crabs
  4. 10. Move slowly, like a crab
  5. 12. Capable of injecting toxic substances
  6. 13. Eight-legged creature like a scorpion
  7. 14. Hunter that preys on other organisms
  8. 15. Aquatic invertebrates with protective shells
  9. 18. Dug-out shelter for scorpions
  10. 19. Distinctive feature of a scorpion
  11. 20. Crab's grasp; a small amount
  12. 22. Outer protective covering in arthropods
  13. 23. Clawed limb of a crab
Down
  1. 1. Hard outer layer in arthropods
  2. 3. Arid region inhabited by scorpions
  3. 5. Aquatic arthropod with a hard shell
  4. 6. Freshwater crustacean, also known as crayfish
  5. 8. Zodiac sign symbolized by a crab
  6. 9. Shedding of an arthropod's exoskeleton
  7. 11. Jaw-like mouthpart in arthropods
  8. 16. Defensive organ on scorpions' tails
  9. 17. Body divided into sections, as in arthropods
  10. 21. Claw-like appendages in arthropods