Across
- 2. Organisms that produce their own food
- 4. Sequence showing who eats whom
- 5. Animals that eat only plants
- 6. Cutting down trees on a large scale
- 12. Animals that sleep during winter season
- 14. Process by which plants make their food
- 15. Group of similar living organisms
Down
- 1. Animals that are active during night
- 3. Protection and preservation of nature
- 7. Gradual change in organisms over time
- 8. Animals that eat both plants and animals
- 9. Variety of different living organisms on Earth
- 10. Forests where trees lose leaves in winter
- 11. Part of Earth where life exists
- 13. Natural place where plants and animals live