Across
- 4. — A community of organisms and their environment
- 6. — The control center of a eukaryotic cell
- 8. — Large molecule made of amino acids
- 10. — A group of similar cells working together
- 16. — An organism that makes its own food
- 17. — Liquid part of blood
- 18. — Green pigment in plants
- 20. — Plant structures that absorb water
- 21. — A segment of DNA that codes for a trait
- 23. — Change in a species over time
- 25. — Main product of photosynthesis
Down
- 1. — Study of heredity
- 2. — A protein that speeds up chemical reactions in cells
- 3. — Tool used to view very small things
- 5. — Kingdom that includes mushrooms
- 7. — Human body system that transports oxygen
- 9. — Movement of molecules from high to low concentration
- 11. — Process of converting glucose into energy
- 12. — The molecule that carries genetic information
- 13. — Organelle where photosynthesis occurs
- 14. — A substance used to stimulate immunity against disease
- 15. — The basic unit of life
- 19. — A living thing
- 22. — Organelle known as the powerhouse of the cell
- 24. — Different forms of a gene