biology

5. the consequence of overwatering and tree cuts
9. the role of the organysm inside the habitat
10. the cycle of living things transferring energy
11. the species that humans introduce them in other habitats
12. the process of intact ecosystems moderating the possible things that can hurt the biodiversity
13. A relationship between living things in which the two of them benefits
14. An animal that lives by killing and eating other animals, usually it is the secondary consumer

1. the variety of biotic things in a habitat
2. way of calling living organisms
3. harvesting a renewable resource to the point of diminishing returns
4. the process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture.
6. an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
7. How the ecosystem provides food and other necessities
8. the aceleration of the cycle of the earth and human contamination creating an increase of temperature