Crustaceans Crossword Puzzle

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Across
  1. 2. used for feeding,swimming,etc.
  2. 5. phylum
  3. 8. something they shed
  4. 9. sub-phylum
  5. 10. what the head and thorax are fused as
  6. 11. animal that uses claw to "shoot" predators
Down
  1. 1. habitat they live in
  2. 3. number of antennas
  3. 4. oldest living crustacean
  4. 6. used for gas exchange
  5. 7. type of reproduction
  6. 10. feathery retractile organs