Across
- 5. study of ancestry
- 6. study of animals
- 7. study of life
- 8. study of gems
- 9. study of diseases
- 11. study of environments
- 12. study of the heart
Down
- 1. study of fish
- 2. study of insects
- 3. study of prehistoric life
- 4. study of the universe
- 10. study of religion