Across
- 4. has a nucleus
- 5. tissues that work together to perform a common function
- 7. the powerhouse of the cell
- 10. do not have a nucleus
- 12. traits giving an organism an advantage to survive
- 13. building by removing water
- 15. speed up chemical reaction by lowering activation energy
Down
- 1. a specialized subunit of the cell
- 2. a living thing that can maintain all life functions
- 3. constant internal conditions
- 6. organelle responsible for photosynthesis
- 8. breaking chemical bonds by adding water
- 9. father of evolution
- 11. a group of cells that perform a common function
- 14. energy