Across
- 3. Chain – A series of organisms showing energy flow.
- 5. – A symbiotic relationship where one benefits and the other is not affected.
- 10. – An organism that makes its own food, usually a plant.
- 11. – A large region with a specific climate and organisms.
- 13. – All living and nonliving parts of an environment together.
- 14. – Variety of life in an ecosystem.
- 16. – The role an organism plays in its ecosystem.
- 17. – An animal that is hunted by predators.
- 20. Cycle – Continuous movement of water on Earth.
- 23. Pyramid – Diagram showing energy loss through trophic levels.
- 24. – A symbiotic relationship where one benefits and the other is harmed.
- 26. – A symbiotic relationship where both species benefit.
- 28. – All the members of one species living in an area.
- 29. Web – Network of connected food chains in an ecosystem.
Down
- 1. Factor – Something that restricts the growth of a population.
- 2. – Organism that gets energy by eating other organisms.
- 4. – Study of how living things interact with each other and their environment.
- 5. Capacity – The largest population an environment can support.
- 6. – Process where plants use sunlight to make food.
- 7. – A close relationship between two different species.
- 8. – An animal that hunts other animals for food.
- 9. Respiration – Process that releases energy from food molecules.
- 12. – Water changing from liquid to vapor.
- 15. – The gradual change of ecosystems over time.
- 18. – Organism that breaks down dead matter and recycles nutrients.
- 19. – All the different populations living in one area.
- 21. Level – Position an organism has in a food chain.
- 22. Cycle – Movement of nitrogen through soil, plants, animals, and atmosphere.
- 25. – Place where an organism lives.
- 27. Cycle – Movement of carbon between organisms, air, water, and Earth.