1. Food Webs & Energy Pyramids https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcSIzVAw0xmKeDcew5lLt01d0EcInJ1yC3TdDa0aIeyawNzzdyZhhQ

2. Trophic Levels One layer in the feeding relationship of an ecosystem http://cleangreenenergyzone.com/wp-content/uploads/2011/03/energy-pyramid-ecosystem.jpg

3. Energy Pyramids Show relative biomass at each trophic level in an ecosystem. http://www.edquest.ca/notesimages/foodpyramid.gif

4. Example of an Energy Pyramid MAN FOX RABBIT 100 % of the sun’s energy 10% 1% 0.1% 10% 1 pound MAN 10 pounds FOXES 100 pounds RABBITS 1000 pounds of GRASS 90% Energy Lost during conversion to heat, waste…. GRASS - The decreasing size of the pyramid shows that each level of the pyramid has a smaller and smaller mass of those organisms.