Across
- 2. Makes approximately 40% of the oxygen in earth's atmosphere
- 3. Animals/plants that eat only Meat/bugs
- 4. To break down; to decay
- 5. A structure in plant cells that carries out photosynthesis
- 6. A trait that helps an organism survive in it's natural environment
- 8. The leaves of a plant
- 9. A colorless, odorless gas given off by burning, and by living things breathing out
- 12. A group of interrelated living things and the environment in which they depend
Down
- 1. Rain, Snow, Sleet, Ice, or Hail
- 7. The condition of being inactive
- 8. A substance that helps plants grow
- 9. An animal that eats plants or other animals
- 10. An area in the ocean with too little oxygen for plants and animal life to survive
- 11. Product leftover & used to make something new that we can use
- 13. To change from a liquid or a solid into a vapor or gas
