Across
- 2. groups of cells, such as the muscle cells
- 5. the smallest part of all living organisms
- 7. control center of the cell
- 8. an organism that has many different cells
- 9. organelle found only in plant cells, not animal cells
- 10. groups of tissues, such as the cardiovascular system
Down
- 1. cells change to serve different body functions
- 3. an organism that has one single cell
- 4. structures within the cell, that each have a function
- 6. surrounds the animal cell, keeps organelles inside
- 8. cells reproduce and divide, forming 2 new cells
- 9. jelly-like substance that fills the cell