1. Energy Pyramid

2. Pyramid of Energy
-Pyramid shows amount of energy in each trophic level
- Only 10% of energy from a trophic level is passed on to the next level
- the missing 90% is released as heat of metabolism

3. Energy pyramid

4. *Only 10% of energy gets passed to the next trophic level

5. Biomass: Biomass needs energy
the total weight of living things at a trophic level
Biomass needs energy

7. Biomass Pyramid
Lower trophic levels have more biomass

8. Biomass Pyramid

9. Pyramid of Numbers
population size usually decreases at each trophic level

12. there are exceptions to the pyramid of numbers
*there are exceptions to the pyramid of numbers* example: 1 tree is food for thousands of insects