Across
- 4. ______ are the tiny structures that make up all living organisms, including sharks, plants, cats, insects, bacteria, and you.
- 8. This part of the cell is the command center of the cell.
- 9. This part of the cell releases energy.
- 10. The scientist who discovered that cells are living things.
- 12. This part of the cell makes proteins.
Down
- 1. The scientist who named cells.
- 2. All cells are filled with a jellylike fluid called cytoplasm and enclosed by a ____ ___________.
- 3. A phrase used to describe cells.
- 5. Different types of organs working together are called a ________.
- 6. Cells are made of ____________.
- 7. This part of the cell is a gel-like substance.
- 11. A bunch of the same type of cells working together is called a ________.
- 13. Different types of tissues working together are called an _______.