Across
- 3. eating plant
- 5. the study of life
- 6. maintain stable internal conditions
- 7. other term of living thing
- 9. basic unit
- 11. to survive
- 12. origin, made by non living thing
- 14. living things
- 15. female cell
- 17. both benefited
- 18. relationship of organism to environment
- 19. human
- 20. male cell
Down
- 1. reaction from stimulus
- 2. animal
- 4. gradual adaptation
- 5. plant
- 8. microorganism
- 10. capability to response
- 13. selection, adapted to their environment
- 16. 23 pairs