Across
- 1. is the process of a cell multiplying
- 5. helps create new blood cells and filters blood
- 9. when a cells carry out a specific part of the DNA to carry out a different function
- 11. what a male frog uses to create a deep voice
- 12. system breaks down food into energy
Down
- 2. found in the immune system
- 3. a complex cell that has a nucleus
- 4. the smallest unit of life
- 6. a less complex cell that is unicellular
- 7. what the frog uses to capture its prey
- 8. the nucleus is gone
- 10. 90% of cells spend their life here