1. ENERGY FLOW SB4b

2. Feeding Relationships
Producer - organisms that make their own food. AKA - autotrophs
Consumer – organisms that get their energy from eating other organisms.
AKA - heterotrophs

3. Feeding Relationships – Types of Consumers
Herbivore – organism only eats plants
Carnivore – organisms only eats animals
Omnivore – organisms eats both plants and animals

4. Feeding Relationships – Types of Consumers
Decomposer – organisms that break down plant and animal matter into simpler compounds.
Detritivores (scavenger) - organisms that eat dead plant and animal matter.

5. Food Chain Arrows show the flow of energy
Producers are always at the bottom
Trophic levels – level of feeding within a food chain

6. Trophic levels Producer - first or bottom level
Primary consumer – herbivores
Secondary consumer – carnivores or omnivores
Tertiary consumer – carnivores or omnivores

8. Food Web
Shows the complex relationships between organisms in an ecosystem
Includes two or more food chains

10. How does energy flow in a food chain or food web?

11. Ecological Pyramids
SB4b Comparing the quantity of energy in the steps of an energy pyramid.

12. Energy Pyramid
Shows the amount of energy available to organisms at each level.

13. Energy pyramid Rule of 10 10% of energy is passed to next level
Energy can also be lost as heat

15. Biomass Pyramid Amount of living material in organisms
Always pyramid shaped

17. Pyramid of Numbers Number of individual organisms at each level
Doesn’t have to be pyramid shape

18. 500 fleas
50 rabbits
1000 plants