Across
- 2. chemical reactions that don’t need oxygen to occur
- 4. the powerhouse of the cell
- 5. cycle - a movement of chemicals through living or nonliving parts of the ecosystem
- 10. molecules that are essential
- 11. a single celled organism that has a nucleus
- 13. charts used to track specific genetic traits in a family
- 21. the ability of an organism to maintain a stable environment
- 25. breaking down food into smaller molecules so the body can use it
- 26. a single celled organism that doesn’t have a nucleus
- 27. living organisms take oxygen in and release carbon dioxide for energy production
- 29. a community of living organisms in a specific area
Down
- 1. what is needed for a chemical reaction
- 3. a variety of life on earth
- 6. structures within a cell that carry DNA
- 7. respiration - cells break down food to release energy
- 8. membrane - a barrier that separates the cells internal environment from the outside
- 9. a cell organelle that manages cells
- 12. fission - single celled organisms divide into two identical daughter cells
- 14. where living things change and adapt over time
- 15. organic matter breaks down
- 16. plants convert light energy into chemical energy
- 17. a cell replicates its chromosomes then segregates them
- 18. chemical reactions that need oxygen to occur
- 19. a chemical element
- 20. light absorbing pigment in plants
- 22. transport - movement of molecules across a cell membrane
- 23. converting genetic information from one text to another
- 24. speeding up chemical reactions
- 28. a living thing
