Across
- 5. study of birds
- 6. study of dogs
- 8. study of fish
- 9. study of reptiles and amphibians
- 12. study of eyes and vision
- 14. study of blood
Down
- 1. study of hormones
- 2. study of the heart
- 3. study of the brain and spinal cord
- 4. study of the causes and effects of diseases
- 7. study of ears and hearing
- 10. study of respiration
- 11. study of disease resistance
- 13. study of horses