Animals & insects Crossword

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Across
  1. 2. Study of animals without a backbone
  2. 5. Study of microscopic life forms
  3. 6. Study of all types of animals
  4. 7. Study of the structure and function of living things
  5. 12. Study of freshwater systems
  6. 13. Study of worms
  7. 14. Study of animals with a backbone
  8. 15. Study of fish
Down
  1. 1. Study of life in the ocean
  2. 3. Study of reptiles and amphibians
  3. 4. Study of ticks,mites,and spiders
  4. 8. Study of mammals
  5. 9. Study of living things
  6. 10. Study of insects
  7. 11. Study of cell biology,cell anatomy,and physiology