Across
- 6. Attaches muscle to bone
- 7. The powerhouse of the cell
- 9. A species that isn't native to a food web
- 10. Living things are made of these
- 13. One organism benefits, the other is harmed
- 15. The body system that does breathing
- 16. The process to make glucose from water and sunlight
- 17. Like a single-stranded version of DNA
- 18. The body system that moves blood around
Down
- 1. Science's favorite sugar
- 2. The organelle where photosynthesis happens
- 3. Both organisms benefit
- 4. The name for plants in a food web
- 5. The molecule that holds plans for life
- 8. The number of chambers in a human heart
- 11. The control center of the cell
- 12. The diversity of species
- 14. Nonliving factors in an environment