Across
- 3. is the special, normal, or proper activity of an organ or part.
- 4. is a collection of tissues that carry out a specialized function of the body
- 5. has 1 or 2 cells
- 9. lacks a nucleus.
- 11. holds and protects the DNA.
- 12. is the smallest unit that can perform all life purposes.
- 13. is the second kind of prokaryote
- 14. they have a nucleus.
Down
- 1. is the arrangement of parts in an organism
- 2. is a molecule that is present in all living cells
- 4. a group of organs that work together to perform body functions
- 6. is a single cell organism
- 7. is a group of similar cells that perform a common function.
- 8. a layers that covers a cell's surface
- 10. is the most common prokaryote