Across
- 3. (a)connected with the nervous system
- 4. (v)have st as a part
- 6. (n)a substance that can flow
- 8. (n)a strong feeling that is intrigued
- 9. (n)response of the body to something
Down
- 1. (n)smallest unit of living matter
- 2. (n)chemicals act as a rewarding system
- 4. (n)a force that causes something else to react
- 5. (v)become greater in size
- 7. (v)to start doing st