Across
- 2. A substance that has a chemical reaction.
- 4. bond Weak bond in DNA molecule.
- 7. Very large molecules made of many atoms.
- 10. when something matures as i ets older.
- 12. Provides energy for cellular processes.
- 13. in the surrounding that cause a reaction.
- 14. Breaks compound by adding water.
- 15. Large molecule made of monomers.
Down
- 1. chemical reactions th food into energy and keep people alive.
- 3. Changes something that helps it survive.
- 5. When living things make new versions of the same ki wth when living things get bigger or heavier.
- 6. The smallest thing alive.
- 8. when living things keep the inside environment even when the outside changes.
- 9. Small molecule that joins with others to make polymer.
- 11. A molecule that has a positive and negative end.