Across
- 4. Group of similar organisms that can reproduce.
- 6. Study of microscopic organisms.
- 7. Variety of living organisms in an area.
- 11. Any living thing.
- 12. The study of living organisms.
- 14. Branch of biology that studies plants.
- 17. Surroundings in which organisms live.
- 19. Basic structural and functional unit of life.
- 20. Study of the form and external structure of organisms.
Down
- 1. Gradual change in living organisms over time.
- 2. Passing of traits from parents to offspring.
- 3. Study of the internal structure of organisms.
- 5. Study of how living organisms function.
- 8. Study of chemical processes in living organisms.
- 9. Natural home of an organism.
- 10. Study of interactions between organisms and their environment.
- 13. Study of heredity and variation.
- 15. Branch of biology that studies animals.
- 16. Study of cells.
- 18. Science of classification of organisms.