Across
- 3. - increase in the size of an organism
- 4. - breakdown of food materials into simpler forms
- 7. reproduction - two parents: offspring are not identical to the parent
- 9. - the study of life
- 12. - involves one parent to produce offspring identical to the parents
- 14. - organisms take materials from the environment to convert them into something it can use
- 15. - chemical substances in food that an organism needs
- 16. - removal of an organism's metabolic wastes
- 18. - getting rid of undigested food from the body
Down
- 1. - condition of maintaining a constant internal environment
- 2. - all the chemical reactions carried on in an organism
- 5. - has all the characteristics of life
- 6. - process of releasing chemical energy from complex reactions
- 8. - materials enter and leave cells/get moved around in the organism
- 10. - the taking in of food
- 11. - combines simple substances to make them into more complex substances
- 13. - they help to maintain homeostasis
- 17. reproduction - producing new offspring:can be identical or different from the parents