Across
- 2. "The study of the interrelationship between an organism’s physiology and its environment."
- 4. "A technique for introducing DNA into cells using high-velocity particles."
- 6. "A landscaping method that reduces water use, often with drought-resistant plants."
- 9. "A type of cell lacking a nucleus, found in bacteria and archaea."
- 10. "The benefits humans obtain from ecosystems, like clean water and air."
- 12. "The study of life possibilities beyond Earth."
- 13. "A process that separates components by spinning them at high speeds."
- 16. "A method to record the electrical activity of the heart."
- 18. "The application of nanotechnology for medical purposes."
- 19. "An increased reaction of the skin to sunlight."
- 20. "The study of evolutionary relationships among biological species."
Down
- 1. "A treatment that uses the body's immune system to fight diseases."
- 3. "The study of biological rhythms and cycles."
- 5. "The ability of a material to interact with living tissue without causing harm."
- 7. "The process of heat production in organisms."
- 8. "The building block of proteins, essential for biological functions."
- 11. "The study of the Earth's chemical composition and processes."
- 14. "The study of the distribution of species and ecosystems in geographic space."
- 15. "The study of how drugs move through the body."
- 17. "A renewable biofuel derived from vegetable oils or animal fats."