Across
- 1. A change in characteristic of a living thing that helps it survive in its environment
- 3. Go into a deep sleep in cold winter months
- 6. All living and nonliving things in one area
- 7. Anything that makes the water, air, or land dirty
- 9. When organisms try to use the same resource
- 12. Looking like another living thing
Down
- 2. Things an organism requires to survive
- 4. All living things
- 5. Anything that meets a need
- 6. Nonliving things surrounding an organism
- 8. Move from one place to another
- 10. Animals that are food for other animals
- 11. Blend in with surroundings