24HRWS1

5. Activities for water quality and soil conservation, e.g., cover crops, contouring plowing, crop rotation.
7. Non-living factor like light, water, temperature, or rocks in an environment.
9. Earth’s crust (water and atmosphere) where living organisms exist.
11. All living things and environment linked by energy and nutrient flow.
13. Species removed from native range, usually by humans.
15. Vegetation and land features for wildlife to hide, sleep, feed, and reproduce.
18. Rocks and minerals; substances like petroleum and coal; cannot regenerate in this age.
20. Offspring of a bird or mammal.
21. Study of relations of living things to one another and their environment.
23. Scientist studying relationships of living things to one another and their environment.
24. One of five essential wildlife habitat elements; placement of food, water, shelter, and space.

1. Population restricted to a particular geographic area.
2. Use of ecosystem concepts to predict and guide management planning and actions.
3. Terrestrial ecosystem characterized by flora and fauna; part of the biosphere.
4. Community of trees, shrubs, herbs covering a large area; uses oxygen, water, and soil nutrients.
6. Single-celled microorganisms without chlorophyll. Break down organic matter; can cause diseases.
8. Resource replenished through natural processes, e.g., trees.
10. Species in danger of extinction across its range.
12. Weather conditions over years based on heat, cold, moisture, wind, and more.
14. Low-growing herbaceous plants, both annuals and perennials.
16. Study of living organisms.
17. Vegetation eaten by animals.
19. Animal living in aquatic habitat as young, terrestrial habitat as adult, e.g., frogs, salamanders.
21. Sum of all external conditions affecting development and survival of an organism.
22. Brushy plants eaten by deer, elk, or cattle; twigs and leaves of woody plants.