Across
- 2. Neutrally charged particle in an atom’s nucleus
- 5. Basic unit of life
- 6. Chemical messenger in the body
- 7. Control center of a cell containing genetic material
- 10. Change in the DNA sequence
- 12. Mountain that erupts with lava
- 15. Process of maintaining stable internal conditions
- 16. Different forms of a gene
- 17. Protein that helps the immune system fight infections
- 18. Gap between neurons where signals are transmitted
- 19. Variety of life in a particular habitat or ecosystem
Down
- 1. Instrument used to observe distant objects in space
- 3. A community of living organisms and their environment
- 4. Complete set of an organism’s genetic material
- 8. Organelle where photosynthesis occurs in plants
- 9. Organelle that synthesizes proteins
- 10. Cell division process resulting in two identical cells
- 11. Process plants use to make food
- 13. Basic unit of matter
- 14. Force that attracts objects towards Earth