Characteristics of Life Name: ________________________________ Down Across 2. An organism that has only one cell 4. An organism that obtains its energy from sunlight (plants) 8. An organism that obtains energy by eating other organisms (animals) 9. All living things ____ to their environment. 10. Contains the instructions for living things 11. A response is a reaction to a _____. 13. Living things are composed of one or more__. 14. Any living thing 15. Reproduction that has only one parent 1. Creates the next generation (can be sexual or asexual) 3. Living things are grouped into six ____. 5. Maintaining constant internal conditions 6. The ability to do work, all living things require it 7. How plants obtain energy 12. Reproduction that combines genetic information www.biologycorner.com