24HRSS4

2. Flow One-way transfer of energy through ecosystems.
5. Part of Earth's crust where living organisms can exist.
7. Cycle Circulation and recycling of carbon atoms through various processes.
10. Dry; receives little precipitation.
11. Organisms using sun's energy to make their own food.
12. Transformation of liquid into vapor or gas.
14. Association of organisms occupying ecological niches, interacting in a common environment.
16. Element needed in large amounts for plant growth.
17. Organisms synthesizing organic compounds from inorganic substances via photosynthesis or chemosynthesis.

1. All living things and their environment linked by energy and nutrient flow.
3. Physical state of a compound with no fixed shape, filling any container.
4. Organisms requiring other organisms for energy-rich food.
6. Animals of a region or period considered as a group.
8. Organism obtaining energy by feeding on others.
9. Element needed in small amounts for plant growth.
13. Management Predicting effects of management actions on ecosystem and guiding planning.
15. Table Zone of saturation in soil, persisting for weeks and within 6 feet of surface.