Across
- 1. the process of discharging undigested or waste material
- 5. the condition of a stable environment in a living thing
- 11. reproducing with 2 parents
- 12. a living thing
- 13. the taking in of food
- 17. all activities that help maintain homeostasis
- 18. the breaking down of food to turn it into energy
Down
- 2. the chemical combining of simple substances
- 3. the process of releasing energy
- 4. the process of making new offspring
- 6. the substances an organism needs for energy, growth, repair and maintenance
- 7. the process by which substances move in and out of cells
- 8. reproducing with only 1 parent
- 9. the study of living things
- 10. all the chemicals reactions in the body
- 14. the removal of waste from the body
- 15. the breaking down of complex food
- 16. the process when an organism increases in size