Across
- 4. an organism capable of synthesizing its food
- 5. any animal that feeds chiefly on grass and other plants
- 9. to break down
- 11. when one organism benefits from another without damaging it
- 13. the area in which something exists or lives
- 14. a terrestrial or aquatic flesh-eating mammal
- 15. an animal or plant that lives in or on a host
Down
- 1. an organism that feeds on complex organic substances
- 2. the relation between two organisms that benefit each other
- 3. the variety of plant and animal life in a habitat
- 6. someone who manufactures something
- 7. organisms interacting with their physical environment
- 8. an animal that feeds on both animal and vegetable substances
- 10. major ecological community with distinct climate and flora
- 12. study of the relations of organisms to their environment