Across
- 3. Group of of the same species living together
- 4. Energy cannot be created or destroyed
- 8. Only eats plants
- 9. Gradual change in an ecosystem
- 11. Provide nutrients and oxygen to an ecosystem
- 13. Number of trophic levels
- 15. Holds space and has mass
- 17. Word which best describes a coyote
- 19. Part of the water cycle
Down
- 1. Plants making their own food
- 2. Large marsupial
- 5. One species replaces another
- 6. A network of food chains
- 7. When waste is converted to nitrogen
- 9. Eats remains of other living things
- 10. Break down dead organisms
- 12. Capacity limits the number of species
- 14. Living elements in an ecosystem
- 16. The number of parts in an ecosystem
- 18. Percent of the earth covered by water
- 19. Average weather conditions of an area