Branches of Biology

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Across
  1. 5. microorganisms
  2. 6. study of cells at the molecular level
  3. 8. viruses
  4. 10. tissues
  5. 15. study of plants
  6. 16. study of fungi
  7. 17. nature and the cause of diseases
  8. 19. animals
  9. 21. reptiles and amphibians
  10. 22. bacteria
Down
  1. 1. worms
  2. 2. birds
  3. 3. mammals
  4. 4. fossils
  5. 7. origin of organisms over time
  6. 9. relationship between living things and the environment
  7. 11. classification of living things
  8. 12. insects
  9. 13. study of fishes
  10. 14. normal functions of living things
  11. 18. internal structure of living things
  12. 20. heredity and variation