Across
- 4. someone who explores
- 5. has a nucleus
- 8. lived
- 9. first to find
- 11. organization
- 13. early stages of development
Down
- 1. problematic situation
- 2. no nucleus
- 3. complaint
- 6. living thing
- 7. study of life
- 10. come across
- 12. farming
- 14. troublemaker