Across
- 3. energy that is given off by atoms
- 4. ______ system is a group of organs that take in food and change it into a form the body can use
- 5. the code that translates the DNA language into the protein language
- 7. the DNA that is formed when DNA from one organism is put into the DNA of another organism
- 10. A ______ turns food into a form the cells can use
- 15. a liquid that is formed in the mouth and that contains an enzyme. (speeds up chemical change in carbohydrates)
- 16. the changing of food into a usable form
- 17. any change in copying the DNA message
- 18. a chemical that acts as a messenger for DNA
- 19. ______ twins are twins that form from two different fertilized egg
- 20. chemicals that speed up the rate of chemical change
Down
- 1. A ______ occurs when large food pieces are broken down into smaller pieces
- 2. three pairs of small glands located under the tongue and behind the jaw
- 6. form the rungs of a DNA molecule
- 8. the adding of a healthy gene into the body of a person suffering from a disorder caused by a defective or mutated gene
- 9. the bringing together of two living things to produce offspring
- 11. a tube hat connects the mouth to the stomach
- 12. ______ twins are two children that form from the splitting of one fertilized egg
- 13. a molecule that makes up genes and determines the traits of all living things
- 14. a baglike, muscular organ that mixes and chemically changes protein