Across
- 7. organism that eats only animals
- 8. organism that eats both plants and animals
- 10. organism that gets energy and matter by breaking down dead organisms
- 13. smallest unit of a substance that has the same properties
- 14. organism that eats only plants
- 16. organism that uses energy and matter to make own food
- 17. ability to cause change
Down
- 1. plant food or minerals
- 2. to protect or save a resource or group
- 3. process without a true beginning or end; loops continuously
- 4. substance made of two or more different elements
- 5. organism that gets energy and matter by eating other organisms
- 6. living things cleaning up pollution
- 7. smallest unit of a living organism
- 9. process of a dead organism breaking down
- 11. living or nonliving that has mass and takes up space
- 12. two or more atoms held together by chemical bonds
- 15. most basic substance on Earth