ecology

2. level - The position of an organism in a food chain, determined by its source of energy
4. - The process of repairing and restoring damaged or degraded ecosystems
7. - A species that is not native to an ecosystem and has negative effects on the environment and native species
8. - The variety of life in an ecosystem, including species, genetic diversity, and ecosystem diversity
10. - A community of living organisms and their environment
12. - The natural home or environment of an organism
14. - All the organisms of a particular species living in a specific area
15. - A large area with a specific climate, soil, and vegetation, such as a desert, tundra, or rainforest

1. cycle - The process by which carbon is exchanged between living organisms, the atmosphere, and the Earth's crust
3. - All the populations of different species living in a specific area
5. - The ability of an ecosystem to maintain its balance and productivity over time
6. - The protection and management of natural resources and ecosystems
9. - The role or position of an organism in its ecosystem, including its interactions with other organisms and its environment
11. - Travel and tourism that focuses on visiting and preserving natural areas and ecosystems
13. chain - The sequence of organisms in an ecosystem where one organism eats another