Across
- 1. the skin, its structure, functions, and diseases
- 4. the study of animals
- 6. animal behavior
- 8. the study of bacteria
- 12. the study of the heart and the blood vessels
- 14. the study of atmospheric conditions
- 16. the study of cancers
- 17. the study of fungi
- 19. the study of rocks
- 20. the study of microorganisms
Down
- 2. the study of the environment
- 3. the study of heavenly bodies
- 5. the study of plants
- 7. the study of kidneys
- 9. the study of the eyes
- 10. the study if the chemistry of living things
- 11. the study of tissues
- 13. the study of viruses
- 15. disorders of the endocrine systems
- 18. the study of matter