Bio crossword

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Across
  1. 4. What is study of viruses called?
  2. 5. What is study of flora and fauna called?
  3. 7. What is study of immunity called?
  4. 11. What is study of tissues called?
  5. 15. What is study of cells called?
  6. 17. What is study of chemical reactions called?
  7. 18. What is study of algae called?
  8. 19. What is study of fungi called?
  9. 20. What is study of bacteria called?
Down
  1. 1. What is study of birds called?
  2. 2. What is study of metabolism called?
  3. 3. What is study of fossils called?
  4. 6. What is study of environment called?
  5. 8. What is study of parasites called?
  6. 9. What is study of fish called?
  7. 10. What is study of insects called?
  8. 12. What is study of embryo called?
  9. 13. What is the science of naming , grouping and classifying plants and animals called?
  10. 14. What is study of disease called?
  11. 16. What is study of living organisms called?