1. Almost all energy on Earth comes from the sun.
Energy Flow
Almost all energy on Earth comes from the sun.

2. Sun
Main energy source
Photosynthesis

3. Bacteria
Producers
Sunlight or Chemical
Autotrophs
Algae
Plants

4. Photosynthesis
Light energy into carbohydrates
Produces O2

6. Chemosynthesis Use energy in chemical bonds to produce carbs
Found – no light present

7. Consumers
Acquire energy from others by eating
AKA:Heterotrophs

8. Six Types of Consumer
Carnivore
Herbivore
Omnivore

9. Six Types of Consumer
Scavenger
Decomposer
Detritivore
Detritus

10. Energy Relationships

11. Environment producers consumers  decomposers.
Food Chains
One-way energy flow
Environment producers consumers  decomposers.

12. Food Chains
Series of steps in which organisms transfer energy from eating or being eaten
Arrows point towards consumer

13. Food Web
Network of complex interactions formed by feeding relationships among the various organisms in an ecosystem

14. Video on food web