GUESS THE KEY WORDS.....

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Across
  1. 2. REMOVAL OF WASTE FROM BODY
  2. 5. SENSITIVE TO DUST AND POLLEN
  3. 6. TISSUE WHICH CONDUCTS MESSAGES
  4. 7. BODY COVERED WITH FEATHERS
  5. 10. BODY COVERED WITH SCALES
  6. 12. JOINS MUSCLES TO BONES
  7. 13. JOINS BONE TO BONE
  8. 14. BODY COVERED WITH HAIR
  9. 15. MAIN EXCRETORY ORGAN OF BODY
  10. 16. living in water
  11. 18. TRANSPORTS OXYGEN
  12. 19. BREAKDOWN OF FOOD TO PRODUCE ENERGY
Down
  1. 1. FORMS INTERNAL SKELETON
  2. 3. ELASTIC AND SUPPORTIVE
  3. 4. TISSUE WHICH HELPS IN MOVEMENT
  4. 8. THE VARIETY OF LIVING ORGANSIMS ON EARTH
  5. 9. TISSUE WHICH COVERS THE BODY
  6. 11. body tapering at the end and wider in the middle
  7. 17. TISSUE WHICH BINDS ALL PARTS OF BODY TOGETHER