Alvaro and AJ´s Fish Puzzle

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Across
  1. 2. produce sperm
  2. 4. helps fish breath
  3. 7. prey detection
  4. 9. where nutrients are stored
Down
  1. 1. provides stability
  2. 3. where food is digested
  3. 4. protects the gill
  4. 5. fin-tail
  5. 6. vital organ that pumps blood
  6. 8. helps fish see