Across
- 2. What term describes the variety of living things in an ecosystem?
- 4. What island territory has protected national parks?
- 7. What do animals compete for in an ecosystem?
- 8. What model shows energy transfer in ecosystems?
- 11. Who established the U.S. National Park Service?
- 12. What is the keystone species in a tide pool?
- 13. What do plants compete for besides space, water, and sunlight?
- 14. What living organism can signal ecosystem health issues?
- 15. What organization protects biodiversity in the U.S.?
- 16. What species breaks down dead organisms?
Down
- 1. What type of species plays a vital role in ecosystem balance?
- 2. What insect is vital for crop pollination?
- 3. What is the keystone species in kelp forests?
- 5. What indicates the direction of energy flow in a food web?
- 6. What is a scientist who studies biodiversity called?
- 9. What is a shallow body of seawater at low tide called?
- 10. What must an ecosystem maintain to stay healthy?