Across
- 2. a diagram that shows many overlapping food chains
- 8. long chain of molecules containing genetic information.
- 10. any biotic or abiotic factors in a environment that restricts population growth.
- 11. a living or once living or once living part of an ecosystem.
- 12. contains chlorophyll and makes food from sunlight.(plant cell only)
- 13. important needs for survival such as food, water, air, and shelter.
- 14. two or more atoms joined together chemically
- 16. a substance that contains 2 or more elements combined in a set ratio.
- 17. to change from one form to another
- 19. a distant group of animals or plants that have common characters and can be bread with each other.
Down
- 1. the basic unit of life.
- 3. any living thing
- 4. the surrounding area where organisms live.
- 5. a organism that is able to produce its own food through the process of photosynthesis or chemosynthesis.
- 6. a non living part of a ecosystem.
- 7. a simple sugar which is a important energy source in living organisms.
- 9. the role that a animal or plant species plays with the environment
- 13. large communities on earth with similar climates and organisms.
- 15. energy given off during a transformation.
- 18. all of the living and nonliving things that interact with with a area.