Across
- 4. Form a unit of genetic code
- 5. A natural appendage
- 6. A pair of parallel helices
- 8. A group of organs that work together
- 11. Its intended purpose
- 12. has a specific vital function
Down
- 1. Preventing something from happening
- 2. The end of an event or process
- 3. Specialized cells
- 7. The smallest unit of an organism
- 9. Inherited from parents
- 10. Organization of parts to form an organ