Across
- 3. EAT dead plants and animals
- 6. Nonliving parts of an environment
- 9. Communities AND the nonliving environment
- 11. Groups of organisms of one species
- 14. All the parts of the Earth where living things exist
- 15. Organisms that rely on other organisms for energy/food.
- 17. Groups of populations of MANY species living together in a defined area
- 18. Eat only plants
Down
- 1. Living organisms in an environment
- 2. Succession that occurs in areas where no soil existed
- 4. Eat plants and animals
- 5. Break down wastes and return them to ecosystem
- 7. Also called producers. Produce food using energy from sunlight
- 8. The main energy source for life on Earth
- 10. The study of interactions among organisms and between them and environment
- 12. Succession that occurs where soil previously existed
- 13. Eat only animals
- 16. Individuals made up of one or more cells