1. Energy Flow in the Ecosystem Ms. Cohen Biology 611

2. What is Ecology? INTERACTIONS Among and between organisms BIOSPHERE is portion of planet in which all of life exists, 8 km above and 11 km below surface.

3. Levels of Organization

4. Producers Main source of energy comes from _____________. Some organisms can use energy stored in ________________ Autotrophs - Plants, algae & _________ How does energy flow through an ecosystem?

5. Types of Producers

6. Consumers Animals, fungi, and ____________ Heterotrophs - –Different types: herbivores, carnivores, omnivores, detritivores DECOMPOSERS -

7. How does energy flow? Energy Flows in ONE direction

8. Food Chains

9. Food Web

10. Food Chain/Food Web Venn Diagram

11. Ecological Pyramids Diagram that shows relative amounts of energy or matter contained within each trophic level in food web or chain. –Three types: Energy pyramid Biomass pyramid Pyramid of numbers

12. __________________ _______________ _ Identify the Pyramids

13. Symbiotic Relationship http://www.youtube.com/watch?v=uxVMeLWzB_o http://www.youtube.com/watch?v=48eKFw7DDbY http://www.youtube.com/watch?v=vMG-LWyNcAs

14. Relationships in an Ecosystem Symbiosis Mutualism Commensalism Parasitism Predator/Prey

15. Dynamic Equilibrium Change is constant Eventually reaches ______________ Ecosystems can handle the change when in a state of _______________ Symptoms of this? (when have we seen this?)