Across
- 4. Organism that makes its own food
- 7. Maximum population an environment can sustain
- 9. All populations living in the same area
- 10. Resource that restricts population growth
- 12. Organism that obtains energy by eating others
- 13. Community of organisms interacting with their environment
- 14. Organism that breaks down dead matter
- 15. Natural environment where an organism lives
Down
- 1. Network of interconnected food chains
- 2. Gradual change in species over time
- 3. Close relationship between different species
- 5. Role and resource use of a species
- 6. Members of one species in a given area
- 7. Struggle for limited resources
- 8. Variety of life in an area
- 11. Interaction where one organism kills and eats another