1. Ecosystems: Preserving the Balance Ms. Clodfelter 8 th grade science November 5, 2015

2. Review Question One What will most likely happen after decomposition? a.Matter will be used by producers b.Scavengers will be consumed by decomposers c.Energy will be transferred to primary consumers d.Decomposers will be broken down into living organisms

3. Answer a. Matter will be used by producers

4. Review Question Two Throughout fossil records, many species appearing in lower layers of rock disappear in higher layers of rock. Which best explains their disappearance? a.The species became extinct b.The species moved to another geographic location c.The fossil remains were disrupted by an earthquake d.Environmental conditions were not suitable for fossil formation

5. Answer a. The species became extinct

6. Review Question Three Which is most likely to be related to a human based on similar anatomical structures? a.Flea b.Fish c.Coyote d.Grasshopper

7. Answer c. coyote

8. Reminders for Tomorrow Vocabulary Quiz Vocabulary Quiz Presentation for your case Presentation for your case Selection Results will be announced Monday Selection Results will be announced Monday

9. Case Study: Background on Invasive Species https://www.youtube.com/watch?v=eY7nuxE8-jM

10. Background: The Nitrogen Cycle https://www.youtube.com/watch?v=6GLIzlUD-zw

11. Let’s Talk About Water… https://www.youtube.com/watch?v=1XC7xT0mIbY

12. Let’s See it in Action! Biome Bottle Lab