Ecology by Nick Ryan

2. / see producer.
3. / animal that only eats other animals.
4. level / a level within a food chain, food we'd or rood pyramid.
8. / of or relations to the earth or its inhabitance.
10. / see consumer.
13. web / diagram showing several food chains joined together to demonstrate that animals eat more than one type of food.
16. / the study of ecosystems.
17. / organisms that break down organic matter into inorganic materials.
19. / organism at the base of the food chain that does not need to feed on other organisms, also known as the autotroph.
20. / living or growing in water.
22. / the living things in the ecosystem.

1. / magnification or concentrations of a substance such as a non-biodegradable pesticide along the food chain, also known as the biological magnification.
5. / organism that relies on other organisms for its food, also known as a Heterotroph.
6. / animal that feeds on and breaks down dead plant or animal matter.
7. / the amount of living matter in a given habitat.
9. / communities of organisms that interact with each other and their environment.
11. / animal that only eats plants.
12. / animal that feeds on dead organic matter.
14. / animal that eats plants and other animals.
15. (of organisms / more than one population living in the same area at a particular time.
18. / living thing.
21. / the non-living in the ecosystem.