Across
- 3. Study of the nervous system of living things.
- 5. A piece of writing written by a person about hisor her own life.
- 6. The study of living things.
- 7. Two different living organisms live together.
- 9. Zone of planet Earth
Down
- 1. A person who studies biology.
- 2. Medicine is used to save lives.
- 4. A diet thought to help you live longer.
- 6. A piece of writing about a person's life written by someone else.
- 8. Removal of living tissue.