Environment

2. Major ecological community with distinct climate and flora
5. An animal or plant whose food and energy requirements derive from animal tissues
6. The baseline part of a food chain includes plants, bacteria, algae and phytoplankton
8. An animal anatomically and physiologically adapted to eating plant material
12. The variety of plant and animal life in a habitat.
14. A process by which plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.
15. All the food chains in a single ecosystem
16. An organism that feeds on complex organic substances

1. When one organism benefits from another without damaging it
3. An organism capable of synthesizing its own food
4. The relation between two organisms that benefit each other
6. An animal or plant that lives in or on a host
7. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers
9. Organisms that feed directly or indirectly on producers, plants that convert solar energy into complex organic molecules.
10. A series of organisms that eat one another so that energy and nutrients flow from one to the next.
11. An animal that has the ability to eat and survive on both plant and animal matter.
13. The study of the relations of organisms to their environment