Across
- 1. An animal that feeds on plants
- 4. Organic matter used as a fuel, especially in a power station for the generation of electricity
- 6. Relating to or concerned with the relation of living organisms to one another and to their physical surroundings
- 8. An organism that derives the organic compounds and energy it needs from the consumption of other organisms
- 10. An organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material
- 11. A condition in which different elements are equal or in the correct proportions
- 13. An animal or person that eats food of both plant and animal origin
- 14. Strengthen or support physically
Down
- 1. The natural home or environment of an animal, plant, or other organism
- 2. (especially of plants or a disease) tending to spread prolifically and undesirably or harmfully
- 3. Physical rather than biological; not derived from living organisms
- 5. The process by which a plant or animal community successively gives way to another until a stable climax is reached
- 7. The condition of being populated with excessively large numbers
- 9. The weather conditions prevailing in an area in general or over a long period
- 12. An individual animal, plant, or single-celled life form