1. Energy flow in the Ecosystem

2. Life depends on…
The SUN!!!

3. What eats what?
Producer – makes own food (photosynthesis) Consumers – eat other organisms 1) Herbivores – eat plant material only 2) Carnivores – eat other animals only 3) Omnivores – eat both plants & animals Decomposers – break down dead decaying things (ex. Bacteria/Fungi)

4. How do we get energy from what we eat?
Cell Respiration O2 + C6H12O6  CO2 + H2O + energy We breathe oxygen, we eat sugars (glucose) & we make carbon dioxide, water & energy!

5. How do plants make their own food?
PHOTOSYNTHESIS!! CO2 + H2O + light  O2 + C6H12O6 Plants take in carbon dioxide, water and light and produce oxygen & glucose (sugars)

6. So how does the energy get around the ecosystem
Food chain – linear sequence of feeding relationships.
Grass  grasshopper mouse  hawk

7. Food chain

8. 2) Food web – diagram showing ALL feeding relationships within an ecosystem

9. Food web