Across
- 2. the study of tissues
- 6. the science which aims to improve the human race through controlled heredity
- 8. the study of birds
- 10. the study of reptiles
- 12. the study of life elsewhere in the universe
- 13. the study of cells
- 14. the study of diseases of plants and animals
- 15. the study of life in the sea
Down
- 1. the study of chemicals and reactions taking place inside living things
- 3. the study of fishes
- 4. the formation and development of embryo of plants and animals
- 5. the study of bacteria
- 7. the study of plants
- 9. the study of algae
- 11. the study of the relationship of an organism to both its biotic and abiotic environment