Ecology

4. the position it occupies in a food web
6. predators with no natural predators of their own
9. Process by which living organisms take in and utilize food substances to maintain life
10. meeting our own needs without compromising the ability of future generations to meet their own needs
11. Elements required by an organism for growth and metabolism are regarded as nutrients, e.g. carbon, nitrogen and phosphorous
12. An organism that uses energy from the sun to produce its own food

1. Ability to have offspring
2. A group of organisms that can interbreed to produce fertile offspring
3. An organism that cannot produce its own food, instead taking nutrition from other sources
5. an animal that kills other animals to eat
7. living or once living components of a community
8. The environment in which species normally lives
13. an animal that is caught and killed by another for food