Across
- 4. cells do not have a nucleus bacteria
- 5. An educated guess or possible explanation that be tested by experiments
- 6. Made of only one cell.
- 9. cells with a nucleus that are enclosed in membranes
- 10. A living thing
- 11. A chemical reaction where water is used to break down a compound into smaller parts.
- 12. The smallest unit of life
Down
- 1. Parts of cells that produces energy.
- 2. All places on earth where life exists
- 3. A tiny structure in cells that build proteins by linking amino acids together.
- 7. plant cells that use sunlight to make food through photosynthesis
- 8. Large area with specific climate and types of plants like a rainforest