Across
- 3. study of geologic features on the ocean floor
- 4. study of the possible control of epidemics and other diseases
- 8. study of blood
- 10. study of mammals
- 12. study of worms (tapeworms)
- 14. study of animals without a backbone
- 15. study of water on earth
Down
- 1. study of freshwater systems
- 2. study of reptiles and amphibians
- 5. study of the immune system
- 6. study of life in the ocean
- 7. study of fish
- 9. study of glaciers
- 11. study of inherited traits
- 13. science dealing with the atmosphere and weather