Across
- 2. – An organism that uses sunlight to produce its own food.
- 4. – Microscopic photosynthetic organisms floating in water.
- 9. – Living components of an environment.
- 12. – Making food using energy from chemical reactions instead of sunlight.
- 14. – An organism that feeds on dead organic matter.
- 15. – Organisms that make their own food from sunlight or chemicals.
- 16. – An organism that eats both plants and animals.
- 17. – An organism that gets energy from chemical compounds.
- 19. – Organisms that eat other organisms for energy.
- 20. – A community of organisms interacting with their physical environment.
Down
- 1. – Photosynthetic bacteria often called blue-green algae.
- 3. – Using sunlight to convert carbon dioxide and water into food.
- 5. – Nonliving factors in an environment (e.g., water, temperature).
- 6. – Organisms that create energy-rich food for an ecosystem.
- 7. – The total mass of living organisms in a given area.
- 8. – An animal that eats only plants.
- 10. – An animal that eats other animals.
- 11. – Organisms that obtain food by consuming other organisms.
- 13. – Organisms that break down dead plants and animals.
- 18. consumer – An organism that feeds directly on producers.