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

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Presentation transcript:

Food Webs & Energy Pyramids

Trophic Levels One layer in the feeding relationship of an ecosystem

Energy Pyramids Show relative biomass at each trophic level in an ecosystem.

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.

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