Across: |
3. | External surroundings of an organism. (11) | 6. | Trap designed to catch tiny soil organisms by making them move away from heat and light. (7,6) | 7. | Instrument which measures light intensity. (5,5) | 10. | A group of organisms of the one species. (10) | 12. | Any living thing. (8) | 13. | Small part of a much larger whole. (6) | 15. | Measure of the extent to which an organism occurs in an ecosystem. (9) | 16. | Means of identifying organisms. (3) | 17. | Sampling technique used to catch aquatic organisms. (7) | 18. | A factor that relates to a living feature of an ecosystem. (6) |
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Down: |
1. | Arrangement of living organisms within an ecosystem. (12) | 2. | Used to catch small invertebrates on the soil surface. (7,4) | 4. | A square-shaped sampling unit of a known area. (7) | 5. | Instrument used to measure the moisture content of the soil. (8,5) | 8. | Natural biological unit made up of living and non-living parts. (9) | 9. | All the organisms that live together in an ecosystem. (9) | 11. | A measure of the moisture in the air. (8) | 14. | The place where an organism lives. (7) | 15. | A factor that relates to a non-living feature of an ecosystem. (7) |
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