Across
- 3. Skin, hair, nails, etc.
- 5. Control center of the cell
- 6. Cells that do not have a nucleus.
- 10. Made of a single cell.
- 11. Brings oxygen into the body and takes out carbon dioxide.
Down
- 1. System that regulates hormones.
- 2. Organism that make their own food.
- 4. Made up more than one cell.
- 7. Individual living thing.
- 8. basic unit of life.
- 9. Organisms that obtain their nutrients or food from consuming other organisms.
- 12. Cells that have a nucleus.